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Geological Investigations of the Vermillion Creek Coal Bed in the Eocene Niland Tongue of the Wasatch Formation, Sweetwater County, Wyoming
Henry W. Roehler
出版U.S. Government Printing Office, 1987
URLhttp://books.google.com.hk/books?id=b2kxNL5iVfYC&hl=&source=gbs_api
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