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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