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1 Potato stocks Washington, D.C. : The Board : [Supt. of Docs., U.S. G.P.O., distributor, 1984]- 1984 评级: 复本
2 Description of and key to American potato varieties Clark, C. F. (Charles Frederick), 1873- Washington, D.C. : U.S. Dept. of Agriculture, 1946. 1946 评级: 复本
3 Costs and farm practices in producing potatoes on 461 farms in Minnesota, Wisconsin, Michigan, New Y Funk, W. C. (Warren Clemmer), 1885- Washington, D.C. : U.S. Dept. of Agriculture, 1924. 1924 评级: 复本
4 Group classification and varietal descriptions of American varieties of sweet potatoes Thompson, H. C. (Homer Columbus), 1885- Washington, D.C. : U.S. Dept. of Agriculture, 1922. 1922 评级: 复本
5 Lessons for American potato growers from German experiences Orton, W. A. (William Allen), 1877-1930. Washington, D.C. : U.S. Dept. of Agriculture, 1913. 1913 评级: 复本
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