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Google圖書搜尋
Types of Farming in Illinois
Ernest Paul Lewis
Frederick Charles Bauer
Frederick Francis Weinard
Harold Clayton M. Case
Paul Hubert Tracy
Robert Childers Ashby
Ruth Crawford Freeman
Harrison August Ruehe
Kenneth Hayes Myers
Samuel Wesley Decker
Russell Jennings Ramsey
其他書名
An Analysis of Differences by Areas
出版
University of Illinois Agricultural Experiment Station
, 1934
URL
http://books.google.com.hk/books?id=ZquEAQAACAAJ&hl=&source=gbs_api