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Preliminary Forest Habitat Types of the Challis, Salmon and Sawtooth National Forests, May 1974

Robert W. Steele

出版	U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1974
URL	http://books.google.com.hk/books?id=o6rZuQEACAAJ&hl=&source=gbs_api