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Machinery Costs on Typical Wheat Farms in North Eastern South Dakota
Erwin O. UllrichWallace G. AanderudJohn T. Sanderson
其他書名
Beadle, Clark, Codington, Day, Marshall, Roberts Counties
出版South Dakota State University, Agricultural Experiment Station, Department of Economics, 1968
URLhttp://books.google.com.hk/books?id=DqkIjjSNiXoC&hl=&source=gbs_api