Ape into human : a study of human evolution / S. L. Washburn, Ruth Moore. Washburn, S. L. (Sherwood Larned), 1911-2000. Moore, Ruth E., joint author. Human evolution. 572 WAA First ed. (c1974) published under title: Ape into man. Includes bibliographical references and index. Boston : Little, Brown, c1980. c1980. 1980 Text viii, 194 p. : eng