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Cliffrose and Mountainmahogany Seeds Retain Viability 6 Years in Cold Storage

H. W. Springfield

出版	Forest Service, U.S. Department of Agriculture, Rocky Mountain Forest and Range Experiment Station, 1973
URL	http://books.google.com.hk/books?id=QP5hOqA0czEC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN