Govett G J S Ed. World mineral supplies: assessment and perspective Govett G J S Ed.; Govett M H Ed. - Amsterdam Elsevier Scientific 1976 - xx, 472p. cm. - Development in economic geology; 3 . Standard No.: 48640 Source: Textual Subjects--Topical Terms: Geology Dewey Class. No.: H7, L6-;1-;2