| from 01/01/2001 to present in MasterFILE Premier and MAS Ultra - School Edition |
| from 06/01/2001 to present in Curtis Memorial Print Holdings |
| from 03/01/1998 to 08/01/2002 in Academic Search Premier, Business Source Corporate, Business Source Premier, Computer Source, MasterFILE Premier and MAS Ultra - School Edition |
| from 12/22/1991 to 05/25/1997 in ProQuest Newsstand (Complete) |
| from 04/01/1997 to present in ABI/INFORM Global |
| from 03/01/1993 to present in ABI/INFORM Global |
| from 04/01/2001 to present in Academic Search Premier and Professional Development Collection |
| from 07/01/1997 to present in Academic Search Premier, MasterFILE Premier and MAS Ultra - School Edition |
| from 1967 to present in Curtis Memorial Print Holdings |
| from 01/01/1999 to 09/01/1999 in Academic Search Premier, Business Source Corporate, Business Source Premier and Computer Source |
| from 01/01/2000 to 1 year ago in Academic Search Premier |
| from 01/01/1999 to 1 year ago in Literature Resource Center |
| 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 |
| to 1 year plus current in Curtis Memorial Print Holdings, Curtis Memorial Print Holdings and Curtis Memorial Print Holdings |
| from 02/01/1990 to present in Alt-HealthWatch |
| from July/August 2001 to present in Curtis Memorial Print Holdings |
| from 01/01/1997 to 04/01/2001 in Alt-HealthWatch |
| from 01/04/1995 to present in ProQuest Newsstand (Complete) |
| from 04/23/2000 to present in Newspaper Source |
| from 05/01/1965 to 11/01/1970 in Business Source Corporate and Business Source Premier |
| from 10/01/2003 to present in ProQuest Newsstand (Complete) |
| from 01/01/1992 to 03/01/1998 in ProQuest Newsstand (Complete) |
| from 1994 to present in Curtis Memorial Print Holdings |
| from 01/01/1995 to present in MasterFILE Premier and Religion & Philosophy Collection |
| from 01/01/1998 to 10/01/1999 in Business Source Corporate, Business Source Premier and MasterFILE Premier |
| from 11/23/2000 to 05/15/2002 in Newspaper Source |
| from 09/01/1998 to present in Professional Development Collection |
| from 02/01/1990 to 09/01/1995 in Academic Search Premier and MasterFILE Premier |
| from 03/01/1992 to present in Academic Search Premier and MasterFILE Premier |