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Google圖書搜尋
Effect of Alternative Wheat and Feed Grain Prices on Optimum Farm Plans and Income in North Central South Dakota
Erwin O. Ullrich
其他書名
Faulk and Potter Counties
出版
Agricultural Experiment Station, South Dakota State University
, 1969
URL
http://books.google.com.hk/books?id=6TgnAQAAMAAJ&hl=&source=gbs_api
