Howell, F. Clark Early man, [electronic resource] / by F. Clark Howell and the editors of Time-Life Books.. — New York, : Time-Life Books, [c1970]. — 200 p. : illus. (part fold. col.), ports. 28 cm. - Life nature library. Bibliography: p. 193. LCCN: 70021460 Subjects--Topical Terms: Human evolution.Prehistoric peoples. LC Class. No.: QH368 / .H638 1970 Dewey Class. No.: 573/.2