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Selection and Comparison of Optimum Organizations for Farms in the Lincoln Area of Southern Illinois with Emphasis on Dairying
Dean Fanning Tuthill
出版
University of Illinois at Urbana-Champaign
, 1958
URL
http://books.google.com.hk/books?id=Lq5VC2-0GjUC&hl=&source=gbs_api