Sturkie, Paul D. Avian physiology / Paul D. Sturkie. - 2nd edition. - Ithaca, New York : Cornell University Press, c1965. - xxvii, 766 pages : Illustrations ; 24 cm. Includes bibliographies. Subjects--Topical Terms: Birds--Physiology. LC Class. No.: QL698 / .S82 1965 Dewey Class. No.: 598.21