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Type of Farming and Ranching Areas in Wyoming

Byron HunterHarry W. PearsonAlonzo Frederick Vass

出版	University of Wyoming, Agricultural Experiment Station : U.S. Department of Agriculture, Bureau of Agricultural Economics, 1938
URL	http://books.google.com.hk/books?id=14YpAQAAMAAJ&hl=&source=gbs_api