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Stratigraphy of the Uppermost Triassic and the Jurassic Rocks of the Navajo Country

John William HarshbargerCharles Albert RepenningJames Haskell Irwin

出版	U.S. Government Printing Office, 1957
URL	http://books.google.com.hk/books?id=-b2SAQAACAAJ&hl=&source=gbs_api