Fields, Robert William Geology of the La Venta badlands, Colombia, South America. - Nairobi : Government Printer, 1959. - 405-442p. : ill. ; 25cm. - Kenya Colony and Protectorate. Geological Survey. Report; 52. . Includes bibliographical references. Subjects--Topical Terms: GeologyColombiaHuila (Dept.) LC Class. No.: PAM QE239.F5