Schreiweis, Donald O. A comparative study of the appendicular musculature of penguins (Aves : Sphenisciformes) / Donald O. Schreiweis. - City of Washington : Smithsonian Institution Press, 1982. - Smithsonian contributions to zoology ; no. 341 . Includes index. Bibliography: p. 31. LCCN: 81607820 Subjects--Topical Terms: Penguins -- Anatomy.--Penguins -- Anatomy.Wings -- Muscles.--Wings -- Muscles.Leg -- Muscles.--Leg -- Muscles.Anatomy, Comparative. LC Class. No.: QL1 QL696.S473 / .S54 no. 341 Dewey Class. No.: 591 s 598.4/41 Gov. Doc. Class. No.: SI 1.27:341