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Google圖書搜尋
The Significance and Technique of Dry Matter Determinations in Yield Tests of Alfalfa and Red Clover
F. Scott Wilkins
Howard Lewis Hyland
出版
Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts
, 1938
URL
http://books.google.com.hk/books?id=KIUkAQAAMAAJ&hl=&source=gbs_api