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A Comparison of Carrying Capacity Perceptions Among Visitors to Two Wildernesses

George H. Stankey

出版	Intermountain Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 1980
URL	http://books.google.com.hk/books?id=-YkJKeOWv3MC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN