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Forest Conditions in the San Francisco Mountains Forest Reserve, Arizona by John B. Leiberg, Theodore F. Rixon, and Arthur Dodwell with an Introduction by F.G. Plummer. [U.S. Geological Survey Professional Paper No. 22. Series H, Forestry, 7.].

United States. Congress. House

出版	1904
URL	http://books.google.com.hk/books?id=0cKHzQEACAAJ&hl=&source=gbs_api