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China's livestock sector

Tuan, Francis C.
Washington, D.C : U.S. Dept. of Agriculture, Economic Research Service : Copies purchased from Supt. of Docs., U.S. G.P.O, [1987] 1987

Energy's role in Western Europe's agriculture

Elleson, Ruth.
Washington, D.C : U.S. Dept. of Agriculture, Economic Research Service ; [Copies can be purchased from Supt. of Docs., U.S. G.P.O.], 1984. 1984