Salop L J ` Precambrian of the Northern Hemsphere general features of early geological evolution - Amsterdam Elsevier 1977 - ix, 378p. cm. - Developments in palaeontology and stratigraphy; 3 . Standard No.: 52000 Source: Textual Subjects--Topical Terms: Precambrian StratigraphyGeology Dewey Class. No.: H51v1927, L7