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Google圖書搜尋
Soil Moisture and Winter Wheat With Suggestions of Abandonment
Alanson Lola Hallsted
Kansas Agricultural Experiment Station
出版
Agricultural Experiment Station, Kansas State College of Agriculture and Applied Science
, 1936
URL
http://books.google.com.hk/books?id=9io3zgEACAAJ&hl=&source=gbs_api