 | Hutchison, John Earl. 4n | (2) |
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 | Hutchison, John Earl. 4n; Argentina : growth potential of the grain and livestock sectors / . Washington, D.C. : Economic Research Service, U.S. Dept. of Agriculture, 1972. | |
| Hutchison, John Earl. 4n; World demand prospects for wheat in 1980 with emphasis on trade by the less developed countries / . Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service, 1970. | |
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