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Google圖書搜尋
Comparison of Winter Wheat Varieties Grown in Cooperative Plot and Nursery Experiments in the Hard Red Winter Wheat Region in 1933
Karl S. Quisenberry
出版
United States Department of Agriculture, Bureau of Plant Industry, Division of Cereal Crops and Diseases
, 1934
URL
http://books.google.com.hk/books?id=DEuUzgEACAAJ&hl=&source=gbs_api