Schmehl, W. R., & Shaner W W, P. P. F. (1982). Farming systems research and development: Guidelines for developing countries. Westview press.
Chicago Edition CitationSchmehl, W R., and Philipp P F. Shaner W W. Farming Systems Research and Development: Guidelines for Developing Countries. Colorado: Westview press, 1982.
MLA Edition CitationSchmehl, W R., and Philipp P F. Shaner W W. Farming Systems Research and Development: Guidelines for Developing Countries. Westview press, 1982.
Warning: These citations may not always be 100% accurate.