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Soils of Steeply Sloping Landscapes in the Southern Appalachian Mountains

C. K. LoscheR. J. McCrackenC. B. Davey

出版	N.C. State University Agri. Exp. Station, 1970
URL	http://books.google.com.hk/books?id=lNgMHQAACAAJ&hl=&source=gbs_api