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Google圖書搜尋
Adjusting the Commercial Family Farm to Part-Time Operation
William A. Wayt
Ohio Agricultural Experiment Station
其他書名
Eastern Corn Belt Area
出版
Ohio Agricultural Experiment Station
, 1961
URL
http://books.google.com.hk/books?id=6IUwzgEACAAJ&hl=&source=gbs_api