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Google圖書搜尋
An Ex-ante Evaluation of Farming Systems Research in Northeastern Mali
Bruno Henry de Frahan
其他書名
Implications for Research and Extension Policy
出版
Department of Agricultural Economics, Department of Economics, Michigan State University
, 1995
URL
http://books.google.com.hk/books?id=O13DPQAACAAJ&hl=&source=gbs_api