Blair, W. Frank Vertebrates of the United States [by] W. Frank Blair [and others]. - New York McGraw-Hill 1957. - 819 p. illus. 25 cm. Includes bibliographies. LCCN: 56009622 /L/r85 Subjects--Topical Terms: Vertebrates--Identification.--United States LC Class. No.: QL605 / .B58 Dewey Class. No.: 596