Research for small farms: proceedings of the special symposium : invited papers presented at a symposium held November 15-18, 1981, at the Beltsville Agricultural Research Center, Beltsville, Maryland
Howard William Kerr, Lloyd V. Knutson, United States. Agricultural Research Service, Beltsville Agricultural Research Center
U.S. Dept. of Agriculture, Agricultural Research Service, 1982 - Technology & Engineering - 301 pages
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