Bradshaw, Peter M.D. Conceptual models in exploration geochemistry: the Canadian Cordillera and Canadian Shield - Amsterdam Elsevier Scientific Publishing Company 1975 - 223 p. ilus. - Developments in Economic Geology n.2 . Subjects--Topical Terms: PROSPECCIÓN GEOQUÍMICA Subjects--Geographic Terms: CANADA Universal Decimal Class. No.: 550.84(71)/B81