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Agriculture in the Central Part of the Semiarid Portion of the Great Plains
Edward Monroe Freeman
Ernst Athearn Bessey
Erwin Frink Smith
Joseph Allen Warren
Perley Spaulding
Edward Carl Johnson
Nellie Adalesa Brown
Charles Orrin Townsend
出版
U.S. Department of Agriculture
, 1911
URL
http://books.google.com.hk/books?id=koG50AEACAAJ&hl=&source=gbs_api