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Preliminary Report on the Stratigraphy of the Morrison and Related Formations of the Colorado Plateau Region

Lawrence Carey Craig

出版	U.S. Department of the Interior, Geological Survey, 1951
URL	http://books.google.com.hk/books?id=GNB5QYJTNRQC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN