Ramsey, William L., Modern Earth Science / William L. Ramsey, Clifford R. Phillips, Frank m. Watenpaugh. - new York : Holt, Rinehart, and Winston, c1978. - x, 580 p. : ill. (col.) ; 24 cm. includes index and glossary. ISBN: 003041556x Dewey Class. No.: 550 / RAM