Walter, Herbert Eugene Biology of the vertebrates a comparative study of man and his animal allies by Herbert E. Walter and Leonard P. Sayles. - 3d ed. - New York Macmillan Co. 1949. - xix, 875 p. illus., map. 25 cm. Bibliography: p. 833-835. LCCN: 49009458 Subjects--Topical Terms: VertebratesAnatomy, ComparativeVertebrates--Anatomy. LC Class. No.: QL605 / .W3 1949 Dewey Class. No.: 596