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Google圖書搜尋
Effects of Alternative Wheat and Feed Grain Prices on Optimum Farm Plans and Income in South Central South Dakota
Erwin O. Ullrich
其他書名
Lyman and Tripp Counties
出版
Agricultural Experiment Station, South Dakota State University
, 1972
URL
http://books.google.com.hk/books?id=S1MnAQAAMAAJ&hl=&source=gbs_api
