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Pythium Graminicola Subr. on Barley

Irving E. MelhusC. H. MeredithWen-chun Ho

出版	Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1941
URL	http://books.google.com.hk/books?id=BIQkAQAAMAAJ&hl=&source=gbs_api