| from 07/01/2001 to 14 days ago in Business Source Corporate |
| from 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 11/26/2000 to present in Newspaper Source |
| from 09/01/2000 to present in MasterFILE Premier, Middle Search Plus, Primary Search and MAS Ultra - School Edition |
| from 1991 to present in Curtis Memorial Print Holdings |
| from 01/01/1992 to 1 year ago in ABI/INFORM Global |
| from 01/01/1988 to 03/01/2003 in ABI/INFORM Global |
| from 01/01/1998 to 03/01/2003 in Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 09/01/1998 to present in Professional Development Collection |
| from annual v. for 1975-current, plus 2 index v. covering the years 1976-1985 to present in Curtis Memorial Print Holdings |
| from 02/01/2001 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1995 to present in Regional Business News |
| from 01/02/1995 to present in Business Source Corporate and MasterFILE Premier |
| from 11/16/1987 to present in ProQuest Newsstand (Complete) |
| from 03/01/2000 to present in Alt-HealthWatch, Academic Search Premier, Health Source: Nursing/Academic Edition, Psychology & Behavioral Sciences Collection and Sociological Collection |
| from 01/01/1999 to present in Academic Search Premier, Health Source: Nursing/Academic Edition, Psychology & Behavioral Sciences Collection and Sociological Collection |
| from 05/01/2003 to present in Academic Search Premier |
| from 06/01/2002 to present in ABI/INFORM Global |
| from 01/01/1975 to 10/01/1979 in Academic Search Premier, MasterFILE Premier, Psychology & Behavioral Sciences Collection, Religion & Philosophy Collection and Professional Development Collection |
| from 01/01/1992 to present in ABI/INFORM Global |
| from 12/01/1996 to present in Academic Search Premier, Business Source Premier, MasterFILE Premier and Professional Development Collection |
| from 1991 to present in Curtis Memorial Print Holdings |
| from 07/01/1996 to 12/01/2001 in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 09/01/1997 to present in Academic Search Premier, MasterFILE Premier, MAS Ultra - School Edition and Sociological Collection |
| from 01/01/1990 to 11/01/2001 in Academic Search Premier, Health Source: Nursing/Academic Edition, MasterFILE Premier and Sociological Collection |
| from 01/01/1998 to present in Academic Search Premier, Business Source Corporate and Health Source: Nursing/Academic Edition |
| from 03/01/2000 to present in Academic Search Premier, Health Source: Nursing/Academic Edition, Psychology & Behavioral Sciences Collection and Sociological Collection |
| from 01/01/1980 to 1 year ago in Academic Search Premier, MasterFILE Premier, Psychology & Behavioral Sciences Collection, Religion & Philosophy Collection, MAS Ultra - School Edition and Professional Development Collection |
| from 05/01/1995 to present in Curtis Memorial Print Holdings |
| from 07/01/1998 to 09/01/2001 in Business Source Corporate, Computer Source, MasterFILE Premier and Vocational & Career Collection |
| from 09/01/2001 to present in MasterFILE Premier |
| from 01/01/1994 to present in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 07/01/2002 to present in Academic Search Premier and MasterFILE Premier |
| from 10/15/1987 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1998 to present in ABI/INFORM Trade & Industry |
| from 09/01/1999 to present in Business Source Corporate, Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 07/01/1994 to 12/01/1995 in MasterFILE Premier and Vocational & Career Collection |
| from 01/04/2002 to present in ABI/INFORM Trade & Industry |
| from 01/04/2002 to present in Business Source Corporate, MasterFILE Premier, MAS Ultra - School Edition and Vocational & Career Collection |
| from 03/01/2001 to present in ABI/INFORM Global |
| from 11/01/2000 to present in Business Source Corporate, Business Source Premier, Computer Source and MasterFILE Premier |
| from 01/01/1994 to 04/01/1996 in Academic Search Premier and MasterFILE Premier |
| from 01/01/1998 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 01/01/1992 to 10/01/1992 in ABI/INFORM Global |
| from 09/01/2000 to present in Academic Search Premier |
| from 01/01/1992 to 08/15/1997 in ProQuest Newsstand (Complete) |
| from 07/01/1993 to present in Academic Search Premier, MasterFILE Premier and Vocational & Career Collection |
| from 06/01/1997 to present in ABI/INFORM Global |
| from 06/01/1996 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 12/01/1997 to present in ABI/INFORM Global |
| from 01/05/1998 to present in ABI/INFORM Trade & Industry |
| from 10/01/2000 to 02/01/2003 in ABI/INFORM Trade & Industry |
| from 03/01/1990 to present in Academic Search Premier, MasterFILE Premier and Psychology & Behavioral Sciences Collection |
| from 07/01/1990 to present in Academic Search Premier, Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 11/01/1987 to present in ABI/INFORM Global |
| from 03/01/2001 to present in Academic Search Premier |
| from 07/01/2000 to present in Academic Search Premier |
| from 01/01/2000 to 06/01/2001 in Business Source Corporate and Business Source Premier |
| from 09/01/2001 to present in Business Source Corporate and Business Source Premier |
| from 03/01/1990 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 07/01/1992 to present in ABI/INFORM Global |
| from 06/01/2001 to present in Academic Search Premier, MasterFILE Premier and Professional Development Collection |
| from 03/01/1997 to 1 year ago in Academic Search Premier, Business Source Corporate, Business Source Premier and Sociological Collection |
| from 03/01/1990 to 03/01/1997 in Academic Search Premier, MasterFILE Premier, Religion & Philosophy Collection and MAS Ultra - School Edition |
| from 03/01/2001 to 1 year ago in Academic Search Premier |
| from 03/01/1990 to present in Academic Search Premier, MasterFILE Premier, Psychology & Behavioral Sciences Collection, Religion & Philosophy Collection, MAS Ultra - School Edition and Sociological Collection |
| from 03/01/1994 to present in Literature Resource Center |
| from 01/01/1997 to 3 months ago in Academic Search Premier and Religion & Philosophy Collection |
| from 01/01/1998 to 1 year ago in Academic Search Premier, Business Source Corporate, Business Source Premier and Computer Source |
| from 01/09/1995 to present in ABI/INFORM Trade & Industry |
| from 04/03/1998 to 09/27/2002 in ABI/INFORM Trade & Industry |
| from Summer 2002 to present in Curtis Memorial Print Holdings |
| from 07/01/1999 to present in Business Source Corporate and Business Source Premier |
| from 5 years to present in Curtis Memorial Print Holdings |
| from 01/01/2001 to present in MasterFILE Premier, MAS Ultra - School Edition and Vocational & Career Collection |
| from 5 years to present in Curtis Memorial Print Holdings |
| from 07/01/1996 to 05/01/2000 in MasterFILE Premier |
| from 01/01/2003 to present in Business Source Corporate and Business Source Premier |
| from 09/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1988 to present in ABI/INFORM Trade & Industry |
| from 11/01/2002 to present in Academic Search Premier and MasterFILE Premier |
| from 03/01/1997 to present in Literature Resource Center |
| from 06/01/1992 to 01/01/1996 in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 09/01/2001 to present in Academic Search Premier and MasterFILE Premier |
| from 04/01/2002 to present in MasterFILE Premier |
| from 03/01/1994 to 06/01/2002 in Literature Resource Center |
| from 06/01/2000 to 3 months ago in Academic Search Premier |
| from 01/01/1990 to 09/01/1996 in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 03/01/1968 to 12/01/1985 in ABI/INFORM Global |
| from 12/01/1987 to present in ABI/INFORM Global |
| from 06/01/2002 to present in ABI/INFORM Global |
| from 01/01/1997 to 1 year ago in Business Source Corporate and Business Source Premier |
| from 01/07/1994 to 08/29/1997 in ABI/INFORM Global |
| from 03/01/2002 to present in ABI/INFORM Global |
| from 12/11/1998 to 01/29/1999 in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 06/01/1985 to 1 year ago in Business Source Corporate and Business Source Premier |
| from 01/01/1965 to present in Business Source Corporate and Business Source Premier |
| from 11/01/1987 to present in ABI/INFORM Global |
| from 10/01/1996 to 10/01/1996 in ABI/INFORM Global |
| from 11/01/1987 to present in ABI/INFORM Global |
| from 11/01/2002 to present in Business Source Corporate and Business Source Premier |
| from 03/01/2001 to 06/01/2003 in Business Source Corporate and Business Source Premier |
| from 03/01/1992 to 03/01/1999 in ABI/INFORM Global |
| from 01/01/1987 to present in ABI/INFORM Global |
| from 03/01/1972 to present in Business Source Corporate and Business Source Premier |
| from 09/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 11/01/1987 to present in ABI/INFORM Global |
| from 11/01/1987 to 01/01/1992 in ABI/INFORM Global |
| from 02/01/1992 to present in ABI/INFORM Global |
| from 03/01/2003 to present in Business Source Corporate and Business Source Premier |
| from 06/01/1998 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 07/01/1998 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 03/01/1991 to 09/01/2000 in Business Source Corporate, Business Source Premier, MasterFILE Premier and Professional Development Collection |
| from 05/01/1997 to 12/01/1998 in ABI/INFORM Global |
| from 08/01/1987 to 08/01/2001 in ABI/INFORM Global |
| from 08/01/1993 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/01/1998 to 03/01/2001 in ABI/INFORM Trade & Industry |
| from 01/01/1992 to present in ABI/INFORM Global |
| from 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 06/01/1991 to present in Business Source Corporate and Business Source Premier |
| from 04/01/2001 to present in ABI/INFORM Trade & Industry |
| from 01/01/1993 to 04/01/1997 in ABI/INFORM Global |
| from 07/03/2000 to 03/21/2002 in Business Source Corporate and Business Source Premier |
| from 05/31/1996 to present in ProQuest Newsstand (Complete) |
| from 04/04/2001 to present in ProQuest Newsstand (Complete) |
| from 07/01/1996 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/30/1996 to 09/01/1997 in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 07/20/1993 to 01/02/1996 in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 12/29/1987 to 07/01/1997 in ABI/INFORM Global |
| from 01/01/1998 to present in ABI/INFORM Global |
| from 07/01/1999 to present in Business Source Corporate and Business Source Premier |
| from 1996 to present in Curtis Memorial Print Holdings |
| from 1982 to present in Curtis Memorial Print Holdings |
| from 1985 to present in Curtis Memorial Print Holdings |
| from 01/01/2002 to present in Business Source Corporate, Business Source Premier and Vocational & Career Collection |
| from 01/01/1999 to present in Business Source Corporate and Business Source Premier |
| from 01/01/2003 to present in Business Source Corporate and Business Source Premier |
| from 09/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1997 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1995 to present in Academic Search Premier, Business Source Corporate, MasterFILE Premier and Vocational & Career Collection |
| from 07/01/1996 to 06/01/2000 in MasterFILE Premier |
| from 01/01/2000 to present in Business Source Corporate, MasterFILE Premier and Vocational & Career Collection |
| from 05/01/2002 to present in Business Source Corporate and Business Source Premier |
| from 01/01/2002 to present in Professional Development Collection |
| from 01/01/1998 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 01/01/2000 to present in Academic Search Premier and Religion & Philosophy Collection |
| from 02/01/1992 to present in ABI/INFORM Global |
| from 09/01/2002 to 12/01/2002 in MasterFILE Premier |
| from 03/01/2000 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 01/01/1998 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 03/01/1998 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 02/01/2000 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 01/01/1994 to 04/01/1996 in MasterFILE Premier and MAS Ultra - School Edition |
| from 01/01/2001 to present in MasterFILE Premier |
| from 01/01/1998 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 04/01/1988 to 12/01/1991 in ABI/INFORM Global |
| from 10/01/1992 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 10/01/1997 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 12/01/1996 to present in Business Source Corporate and Business Source Premier |
| from 02/01/2001 to 07/01/2002 in Business Source Corporate and Business Source Premier |
| from 06/15/2003 to present in Business Source Corporate and Business Source Premier |
| from 01/01/2002 to present in Business Source Corporate |
| from 02/04/1992 to 08/13/1997 in ProQuest Newsstand (Complete) |
| from 01/01/2000 to present in Academic Search Premier and Business Source Corporate |
| from 04/01/1998 to present in ABI/INFORM Trade & Industry |
| from 07/23/2003 to present in Newspaper Source |
| from 01/23/1993 to present in ProQuest Newsstand (Complete) |
| from 09/02/1997 to present in Newspaper Source |
| from 07/01/1986 to present in ProQuest Newsstand (Complete) |
| from 08/01/1993 to 12/01/2001 in Business Source Corporate, MasterFILE Premier and Vocational & Career Collection |
| from 05/01/1990 to 07/01/2002 in MasterFILE Premier, MAS Ultra - School Edition and Vocational & Career Collection |
| from 03/01/2001 to 1 year ago in Academic Search Premier and Computer Source |
| from 02/01/2002 to present in Academic Search Premier |
| from 07/01/1996 to present in MasterFILE Premier |
| from 5 years to present in Curtis Memorial Print Holdings |
| from 07/01/1994 to present in Business Source Corporate, MasterFILE Premier and Vocational & Career Collection |
| from 03/01/1990 to 06/01/2001 in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier, MAS Ultra - School Edition and Professional Development Collection |
| from 03/01/2002 to present in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier, MAS Ultra - School Edition and Professional Development Collection |
| from 03/01/1996 to present in Academic Search Premier, Health Source: Nursing/Academic Edition, MasterFILE Premier, Psychology & Behavioral Sciences Collection and Sociological Collection |
| from 08/01/1993 to 12/01/1995 in Academic Search Premier, Health Source: Nursing/Academic Edition, MasterFILE Premier, Psychology & Behavioral Sciences Collection, Sociological Collection and Professional Development Collection |
| from 01/01/1994 to present in Academic Search Premier, MasterFILE Premier and Professional Development Collection |
| from 02/01/2001 to present in Academic Search Premier |
| from 01/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 11/01/1988 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 01/01/1997 to present in Literature Resource Center |
| from 12/01/1993 to 1 year ago in Academic Search Premier and Religion & Philosophy Collection |
| from 01/01/1999 to present in Literature Resource Center |
| from 01/01/1998 to 1 year ago in Academic Search Premier |
| from 04/01/2001 to 6 months ago in Academic Search Premier |
| from 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1999 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 03/01/1999 to 1 year ago in Academic Search Premier and Health Source: Nursing/Academic Edition |
| from 03/01/1990 to 08/01/1993 in Academic Search Premier, Health Source: Nursing/Academic Edition, MasterFILE Premier and MAS Ultra - School Edition |
| from 03/01/2001 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 06/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 06/01/1997 to present in ABI/INFORM Trade & Industry |
| from 01/01/2001 to present in MasterFILE Premier |
| from 01/01/1996 to present in ABI/INFORM Trade & Industry |
| from 07/01/2000 to present in Business Source Premier |
| from 01/01/2000 to present in Business Source Corporate, Business Source Premier and Vocational & Career Collection |
| from 10/01/1995 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 01/01/1998 to 03/01/2000 in ABI/INFORM Trade & Industry |
| from 10/01/1995 to present in Business Source Corporate, Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 03/01/2002 to present in ABI/INFORM Trade & Industry |
| from 02/01/2000 to 1 year ago in Academic Search Premier and Business Source Corporate |
| from 03/01/2001 to 1 year ago in Business Source Corporate and Business Source Premier |
| from 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1991 to 06/01/2002 in ABI/INFORM Global |
| from 01/01/1991 to 09/01/2002 in Academic Search Premier, Business Source Corporate, Business Source Premier, Health Source: Nursing/Academic Edition, MasterFILE Premier and Vocational & Career Collection |
| from 01/15/1997 to present in Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 10/15/2000 to present in ABI/INFORM Trade & Industry |
| from 06/25/1996 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 07/01/1999 to present in Business Source Corporate, Business Source Premier and Vocational & Career Collection |
| from 03/01/1998 to 1 year ago in Academic Search Premier |
| from 12/01/2001 to present in MasterFILE Premier |
| from 08/01/1998 to present in MasterFILE Premier and MAS Ultra - School Edition |
| from 09/01/2000 to present in MasterFILE Premier and Middle Search Plus |
| from 01/08/1990 to present in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 04/15/1991 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 1994 to present in Curtis Memorial Print Holdings |
| from 03/25/2002 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 1994 to Fall 2002 in Curtis Memorial Print Holdings |
| from 03/25/2002 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 03/04/2002 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 5 years to present in Curtis Memorial Print Holdings |
| from 04/28/2003 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/01/2001 to present in Business Source Corporate and Business Source Premier |
| from 01/01/2002 to present in ABI/INFORM Global |
| from 08/01/1998 to present in ABI/INFORM Trade & Industry |
| from 01/01/1923 to 10/01/1985 in ABI/INFORM Global |
| from 01/01/1975 to present in MasterFILE Premier and MAS Ultra - School Edition |
| from 01/01/1985 to present in Vocational & Career Collection |
| from 01/01/1986 to present in ABI/INFORM Global |
| from 10/01/1964 to present in Academic Search Premier, Business Source Corporate and Business Source Premier |
| from 1978-1989; 3-4/2002 to present in Curtis Memorial Print Holdings |
| from 03/01/1990 to present in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 04/01/1994 to present in ABI/INFORM Global |
| from 03/01/2001 to 07/01/2001 in ABI/INFORM Trade & Industry |
| from 02/01/1999 to 1 year ago in Academic Search Premier |
| from 01/01/1993 to present in ABI/INFORM Global |
| from 03/01/1998 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/01/1998 to present in ABI/INFORM Trade & Industry |
| from 08/01/2002 to present in Business Source Corporate and Business Source Premier |
| from 05/01/2003 to present in ABI/INFORM Trade & Industry |
| from 07/01/1999 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1999 to present in ABI/INFORM Trade & Industry |
| from 05/01/1995 to present in Business Source Corporate, Business Source Premier, Health Source: Nursing/Academic Edition and MasterFILE Premier |
| from 10/08/1999 to present in Regional Business News |
| from 10/22/1999 to present in Business Source Corporate and MasterFILE Premier |
| from 08/30/1997 to present in Newspaper Source |
| from 01/13/1992 to present in ABI/INFORM Global |
| from 01/27/1992 to present in Academic Search Premier, Business Source Corporate, Business Source Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 1994 to present in Curtis Memorial Print Holdings |
| from 01/24/2000 to present in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 02/13/1993 to 07/12/1997 in ProQuest Newsstand (Complete) |
| from 02/01/1996 to 03/01/1999 in Academic Search Premier, MasterFILE Premier and Sociological Collection |
| from 06/01/2001 to present in Academic Search Premier and Religion & Philosophy Collection |
| from 10/01/1998 to 1 year ago in Academic Search Premier |
| from 07/01/1999 to present in Business Source Corporate and Business Source Premier |
| from 01/01/1992 to 11/01/1996 in ABI/INFORM Global |
| from 05/01/1998 to present in ABI/INFORM Trade & Industry |
| from 07/01/1997 to present in Business Source Corporate, Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 11/26/2000 to present in Newspaper Source |
| from 03/01/1999 to 1 year ago in Academic Search Premier |
| from 01/01/2000 to 10/01/2000 in ABI/INFORM Trade & Industry |
| from 01/01/2002 to present in Business Source Corporate, Business Source Premier and Vocational & Career Collection |
| from 10/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 01/01/2003 to present in Business Source Corporate and Business Source Premier |
| from 09/01/2000 to present in Business Source Corporate and Business Source Premier |
| from 08/01/1996 to 01/01/1998 in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/01/1991 to present in Business Source Corporate, Business Source Premier, MasterFILE Premier and Vocational & Career Collection |
| from 01/01/1992 to present in ABI/INFORM Global and ABI/INFORM Trade & Industry |
| from 01/01/2001 to 11/01/2001 in MasterFILE Premier and Professional Development Collection |
| from 06/09/1995 to 05/24/1996 in Academic Search Premier, Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 03/29/1996 to present in Academic Search Premier, Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 01/16/2002 to present in Newspaper Source |
| from 08/01/1993 to 09/01/1997 in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 01/01/2001 to present in Literature Resource Center |
| from 03/01/1961 to 1 year ago in Academic Search Premier |
| from 03/01/2003 to 1 year ago in ABI/INFORM Global |
| from 03/01/2001 to present in Literature Resource Center |
| from 02/01/1998 to 1 year ago in Academic Search Premier |
| from 08/30/1997 to present in Newspaper Source |
| from 07/16/2001 to present in Academic Search Premier, Business Source Premier, MasterFILE Premier and |