Geochemistry in mineral exploration / H.E. Hawkes and J.S. Webb. Hawkes, H. E. (Herbert Edwin), 1912- Webb, John S. (John Stuart) joint author. Geochemical prospecting. TN270 .H285 551.9 HAG Includes bibliographical references and index New York : Harper & Row, 1962. 1962. 1962 Text xiv, 415 p. : eng Harper's geoscience series