Hawkes, H. E. 1912- Geochemistry in mineral exploration / by H.E. Hawkes and J.S. Webb. - New York : Harper & Row, 1962[Reprint1965] - 415 p. : illus. ; 25 cm. Includes bibliography. Subjects--Topical Terms: Geochemical prospecting. Dewey Class. No.: 622.13 / HAG 1965