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Silviculture of Lodgepole Pine in the Central Rocky Mountains

Wayne D. ShepperdRobert R. Alexander

出版	USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1983
URL	http://books.google.com.hk/books?id=bBkEWmf6ZGoC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN