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001203 - U.S. Dept. of Agriculture. Ofc. of International Cooperation and Development
Document
Global review of farming systems research and extension activities : a results inventory based on secondary sources, an other usaid supported study/document from 1988 PN-ABF-766
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001203 - U.S. Dept. of Agriculture. Ofc. of International Cooperation and Development
Document
Identification of results of farming systems research and extension activities : a synthesis, an other usaid supported study/document from 1988 PN-ABF-767