Principles of comparative psychology / edited by Rolland H. Waters, D. A. Rethlingshafer [and] Willard E. Caldwell. - New York : McGraw-Hill, c1960. - viii, 453 p. : illus. ; 24 cm. Includes bibliographical references and index. Subjects--Topical Terms: Psychology, Comparative. Dewey Class. No.: 151.3 / PRI 1960