Wedepohl, Karl Hans. Geochemistry / Karl Hans Wedepohl ; translated from the German by Egon Althaus. - New York : Holt, Rinehart and Winston, 1971. - xii, 231 p. : ISBN: 0030853540(pbk.) Subjects--Topical Terms: Geochemistry. Dewey Class. No.: 551.9 / Ge