Human variation and origins / with introductions by W. S. Laughlin and R. H. Osborne. - San Francisco : W.H.Freeman, 1967. - 297 p. : ill., (part col.), maps, ports. ; 29 cm. At head of title: Readings from Scientific American. Includes bibliographical indexes. ISBN: 0716709686 Subjects--Topical Terms: Human evolution.Human genetics.