Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-22T05:28:50Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 2 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA_AGRICOLA -180.0,-90.0,180.0,90.0 1500-01-01T00:00:00Z T00:00:00Z 2009-04-20T04:00:00Z

AGRICOLA (AGRICultural OnLine Access) is a bibliographic database of citations to the agricultural literature created by the National Agricultural Library and its cooperators. Production ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0426 -180.0,-90.0,180.0,90.0 1972-01-01T00:00:00Z T00:00:00Z 2008-03-03T05:00:00Z

"CAB Abstracts" is a comprehensive bibliographic database of agricultural and biological data from all journals published by CAB International. Material abstracted and in the database include scientific ...