Methods and principles of systematic zoology / Ernst Mayr, E. Gorton Linsley and Robert L. Usinger. Mayr, Ernst, Linsley, E. Gorton jt. aut. Usinger, Robert L. jt. aut. Animals Classification. Animals Nomenclature. QL351 .M28 590 MAM Includes bibliographical references and index. New York : McGraw-Hill, 1953. 1953. 1953 Text 328 p. : eng McGraw-Hill publications in the zoological sciences