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Google圖書搜尋
A Basebook for Agricultural Adjustment in Iowa
C. Robert Elford
George M. Beal
James H. Anderson
R. Burnell Held
Richard Phillips
Everett M. Rogers
Kenneth Kirtland Barnes
Robert H. Shaw
其他書名
Agriculture in the mid-fifties
出版
Agricultural Experiment Station, Iowa State College
, 1957
URL
http://books.google.com.hk/books?id=biNgYoxRsqUC&hl=&source=gbs_api