Franzel, S. (1979). An interim evaluation of two agricultural production projects in Senegal: The economics of rainfed and irrigated agriculture. Dept. of Agricultural Economics, Michigan State University.
Lua i Stíl Chicago (17ú heag.)Franzel, Steven. An Interim Evaluation of Two Agricultural Production Projects in Senegal: The Economics of Rainfed and Irrigated Agriculture. East Lansing: Dept. of Agricultural Economics, Michigan State University, 1979.
Lua MLA (8ú heag.)Franzel, Steven. An Interim Evaluation of Two Agricultural Production Projects in Senegal: The Economics of Rainfed and Irrigated Agriculture. Dept. of Agricultural Economics, Michigan State University, 1979.
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