| from 09/21/2001 to 12/13/2002 in General OneFile |
| from 01/01/1998 to 1 year ago in Business Source Premier |
| from 01/01/2002 to 06/01/2006 in LexisNexis Academic |
| from 07/01/2002 to present in Academic OneFile, Business Source Premier and General OneFile |
| from 01/01/2008 to present in Academic OneFile |
| from 04/05/2005 to present in General OneFile |
| in LexisNexis Academic (selected full-text only) |
| from 05/27/1990 to 06/19/1991 in LexisNexis Academic (selected full-text only) |
| from 01/09/1990 to 06/15/1996 in LexisNexis Academic (selected full-text only) |
| from 01/01/1997 to 07/01/1999 in Academic OneFile and General OneFile |
| from 1998 to 2004 in ScienceDirect Social & Behavioral Sciences College Edition |
| from 03/01/1999 to 1 year ago in Academic Search Premier |
| in LexisNexis Academic |
| from 02/29/1996 to present in LexisNexis Academic |
| from 01/01/2002 to 18 months ago in Academic Search Premier |
| from 01/01/1995 to present in ScienceDirect Physical Sciences College Edition |
| from 2006 to present in PubMed Central |
| from 01/01/2007 to present in Academic OneFile |
| from 01/01/1995 to present in ScienceDirect Physical Sciences College Edition |
| from 2005 to present in Bergen Community College Print Titles |
| from 03/22/2007 to 09/22/2007 in Academic OneFile |
| from 01/01/1997 to 1 year ago in Academic Search Premier |
| from 01/01/1992 to present in ProQuest Research Library |
| from 12/01/2002 to 10/31/2003 in Academic Search Premier |
| from 06/22/2001 to present in Academic OneFile and General OneFile |
| from 04/01/2002 to 03/31/2004 in LexisNexis Academic (selected full-text only) |
| from 04/01/2003 to present in Academic Search Premier |
| from 04/01/2005 to present in General OneFile |
| in LexisNexis Academic (selected full-text only) |
| from 07/15/1996 to 09/04/2000 in Business Source Premier and MasterFILE Premier |
| from 05/31/1999 to 09/04/2000 in Academic OneFile and General OneFile |
| from 04/01/1998 to 05/01/2006 in ProQuest Research Library |
| from 01/01/2004 to 03/31/2004 in Business Source Premier |
| from 01/01/2004 to 03/31/2004 in Business Source Premier |
| from 01/01/2004 to 03/31/2004 in Business Source Premier |
| from 01/01/2004 to 03/31/2004 in Business Source Premier |
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| from 11/03/2001 to 07/31/2004 in LexisNexis Academic |
| from 05/01/2003 to 1 year ago in Academic Search Premier |
| from 05/01/1981 to 1 year ago in HighWire Press (Free Journals) |
| from 06/01/1995 to present in ScienceDirect Health & Life Sciences College Edition |
| from 1994 to 2003 in Bergen Community College Print Titles |
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| from 01/01/1996 to 03/01/2008 in Academic OneFile and General OneFile |
| from Current 10 years to present in Bergen Community College Print Titles |
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| from 01/01/1995 to present in ScienceDirect Health & Life Sciences College Edition |
| from 01/28/2007 to present in LexisNexis Academic |
| from 11/27/2003 to present in General OneFile |
| from 08/14/2003 to present in Business Source Premier |
| from 12/01/1998 to 01/31/2002 in Business Source Premier |
| from 12/01/1998 to 01/31/2001 in Business Source Premier |
| from 06/01/2006 to present in Business Source Premier |
| from 06/01/2006 to present in Business Source Premier |
| from 01/01/2003 to present in Business Source Premier |
| from 06/01/2006 to present in Business Source Premier |
| from 06/01/2006 to present in Business Source Premier |
| from 01/01/1988 to present in ABI/INFORM Global and ProQuest Research Library |
| from 01/01/1989 to present in General OneFile |
| from 07/01/1996 to present in Business Source Premier and MasterFILE Premier |
| from 10/01/2002 to present in Business Source Premier |
| from 08/01/2004 to present in General OneFile |
| from 05/01/1999 to present in General OneFile |
| from 01/01/1988 to 12/01/1988 in General OneFile |
| in LexisNexis Academic |
| from 01/01/1995 to 06/29/1997 in LexisNexis Academic |
| from 03/01/1984 to 06/30/2004 in Business Source Premier |
| from 04/01/1987 to present in ABI/INFORM Global |
| from 12/22/1999 to present in Academic OneFile and General OneFile |
| from 09/01/2007 to present in Business Source Premier |
| from 03/01/1999 to 1 year ago in Academic Search Premier |
| from 01/01/1994 to present in MasterFILE Premier, Middle Search Plus and |