Craig, I. A. (1987). Problems and opportunities for farming systems based annual crop development in Northeast Thailand. Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture.
Chicago-referens (17:e uppl.)Craig, Iain A. Problems and Opportunities for Farming Systems Based Annual Crop Development in Northeast Thailand. Khon Kaen, Thailand: Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture, 1987.
MLA-referens (9:e uppl.)Craig, Iain A. Problems and Opportunities for Farming Systems Based Annual Crop Development in Northeast Thailand. Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture, 1987.
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