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41
42
Full text available from Agricultural Science Database: 06/15/2002 to present
Full text available from Career & Technical Education Database: 06/15/2002 to present
Full text available from Engineering Database: 06/15/2002 to present
Full text available from Environmental Science Database: 06/15/2002 to present
Electronic
Journal
43
Published 1959
Full text available from ABI/INFORM Trade & Industry: 03/16/1998 to 11/30/2002Full text available from Agricultural Science Database: 03/16/1998 to 11/30/2002
Full text available from Engineering Database: 03/16/1998 to 11/30/2002
Full text available from Environmental Science Database: 03/16/1998 to 11/30/2002
Electronic
Journal