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Google圖書搜尋
Man Power Requirements and the Outlook for Available Labor, Crop Year 1943, Arizona's Irrigated Farms
Elzer Des Jardines Tetreau
出版
Agricultural Experiment Station, University of Arizona
, 1943
URL
http://books.google.com.hk/books?id=lk_wtgAACAAJ&hl=&source=gbs_api