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Full text available from ABI/INFORM Trade & Industry: 01/01/1991 to 06/30/2017
Full text available from Advanced Technologies & Aerospace Database: 01/01/1991 to 06/30/2017
Full text available from Career & Technical Education Database: 01/01/1991 to 06/30/2017
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Full text available from Military Database: 01/01/1991 to 06/30/2017
Full text available from Research Library: 01/01/1991 to 06/30/2017
电子
杂志
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112
Full text available from Engineering Database: 01/03/1995 to 11/30/2011
Full text available from ABI/INFORM Trade & Industry: 11/06/2001 to 11/30/2011
Full text available from Career & Technical Education Database: 11/06/2001 to 11/30/2011
Full text available from Research Library: 11/06/2001 to 11/30/2011
电子
杂志
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Full text available from ABI/INFORM Trade & Industry: 01/01/1992 to 03/31/1997
Full text available from Agricultural Science Database: 01/01/1992 to 03/31/1997
Full text available from Career & Technical Education Database: 01/01/1992 to 03/31/1997
Full text available from ABI/INFORM Global: 05/01/2007 to present
Full text available from ABI/INFORM Trade & Industry: 05/01/2007 to present
Full text available from Agricultural Science Database: 05/01/2007 to present
Full text available from Career & Technical Education Database: 05/01/2007 to present
电子
杂志
118
Full text available from Agricultural Science Database: 01/01/1985 to 10/31/1985
Full text available from Engineering Database: 01/01/1985 to 10/31/1985
Full text available from Environmental Science Database: 01/01/1985 to 10/31/1985
Full text available from ABI/INFORM Global: 01/01/1986 to 11/30/1998
Full text available from Agricultural Science Database: 01/01/1986 to 11/30/1998
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Full text available from ABI/INFORM Global: 01/01/1999 to 07/31/2005
Full text available from Agricultural Science Database: 01/01/1999 to 07/31/2005
Full text available from Engineering Database: 01/01/1999 to 07/31/2005
Full text available from Environmental Science Database: 01/01/1999 to 07/31/2005
电子
杂志
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Full text available from Nursing & Allied Health Database: 01/01/1990 to 12/31/1998
Full text available from Psychology Database: 01/01/1990 to 12/31/1998
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电子
杂志