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Cone and Seed Insects and Their Impact on Whitebark Pine

Sandy Kegley

出版	USDA Forest Service, 2001
URL	http://books.google.com.hk/books?id=pqC5zwEACAAJ&hl=&source=gbs_api

註釋

Several sites in the geographical range of whitebark pines were examined to determine the effects of seed and cone insects on reproduction.