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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
Full text available from Engineering 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
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Electrónico
Revista
14
Full text available from ABI/INFORM Trade & Industry: 06/01/1996 to present
Full text available from Agricultural Science Database: 06/01/1996 to present
Full text available from Career & Technical Education Database: 06/01/1996 to present
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Electrónico
Revista
15
Publicado 2002
Full text available from ABI/INFORM Global: 01/01/1991 to 12/31/2002Full text available from Agricultural Science Database: 01/01/1991 to 12/31/2002
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Full text available from Engineering Database: 01/01/1991 to 12/31/2002
Full text available from Environmental Science Database: 01/01/1991 to 12/31/2002
Full text available from Research Library: 01/01/1991 to 12/31/2002
Full text available from Social Science Database: 01/01/1991 to 12/31/2002
Government Document
Electrónico
Revista
16
Publicado 2004
Full text available from ABI/INFORM Trade & Industry: 03/01/1998 to 12/31/2004Full text available from Agricultural Science Database: 03/01/1998 to 12/31/2004
Full text available from Career & Technical Education Database: 03/01/1998 to 12/31/2004
Full text available from Engineering Database: 03/01/1998 to 12/31/2004
Full text available from Environmental Science Database: 03/01/1998 to 12/31/2004
Government Document
Electrónico
Revista
17
Publicado 2003
Full text available from ABI/INFORM Global: 06/01/2003 to presentFull text available from Agricultural Science Database: 06/01/2003 to present
Full text available from Career & Technical Education Database: 06/01/2003 to present
Full text available from Engineering Database: 06/01/2003 to present
Full text available from Environmental Science Database: 06/01/2003 to present
Full text available from Political Science Database: 06/01/2003 to present
Full text available from Research Library: 06/01/2003 to present
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Government Document
Electrónico
Revista
18
Publicado 1987
Full text available from Agricultural Science Database: 09/01/2004 to 09/22/2008Full text available from Engineering Database: 09/01/2004 to 09/22/2008
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Full text available from Research Library: 09/01/2004 to 09/22/2008
Electrónico
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19
Publicado 2006
Full text available from Agricultural Science Database: 05/01/2012 to 1 year ago
Electrónico
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