Engelhardt W Van Ed. Strontium isotope geology Engelhardt W Van Ed.; Roy Aachen A Ed.; Hahn T Ed. - 1972 - p. cm. - Minerals, rocks and inorganic materials monograph series of theoretical and eperimetnal studies; 5 . Standard No.: 47188 Source: Textual Subjects--Topical Terms: Copper depositsGeology Dewey Class. No.: H1124-196, L2