| 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 03/15/2001 to present in Newspaper Source |
| from 02/01/2003 to present in ABI/INFORM Global |
| from 01/01/2002 to present in ABI/INFORM Global |
| from 03/01/2002 to 06/01/2002 in ABI/INFORM Trade & Industry |
| from 05/01/2000 to 06/01/2002 in Curtis Memorial Print Holdings |
| from 05/01/2001 to 06/01/2002 in Business Source Corporate, Business Source Premier, Computer Source, MasterFILE Premier and Vocational & Career Collection |
| from 05/01/2000 to 04/01/2001 in Business Source Corporate, Business Source Premier, Computer Source, MasterFILE Premier and Vocational & Career Collection |
| from 10/01/1998 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 12/01/1998 to present in Business Source Corporate and Business Source Premier |
| from 1994 to present in Curtis Memorial Print Holdings |
| from 01/01/1999 to 1 year ago in Academic Search Premier |
| from 01/01/2000 to 6 months ago in Academic Search Premier |
| from 03/01/1997 to 1 year ago in Academic Search Premier, Psychology & Behavioral Sciences Collection, Religion & Philosophy Collection and Sociological Collection |