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Soil Survey, Crosby County, Texas

W. M. KoosLee A. PutnamWayburn Dale Mitchell

出版	U.S. Department of Agriculture, Soil Conservation Service, 1966
URL	http://books.google.com.hk/books?id=TTHR7nlEVxgC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN