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Google圖書搜尋
Effect of Time of Cutting Red Clover on Forage Yields, Seed Setting and Chemical Composition
Carroll Paton Wilsie
Eugene Amos Hollowell
出版
Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts
, 1948
URL
http://books.google.com.hk/books?id=yXYkAQAAMAAJ&hl=&source=gbs_api