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Development of Sirococcus Shoot Blight Following Thinning in Western Hemlock Regeneration

Charles Gardner ShawThomas H. LaurentSpencer Israelson

出版	U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1981
URL	http://books.google.com.hk/books?id=bqqKxHOzTv4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN