A classification for the birds of the world
Series: Smithsonian miscellaneous collections -- v. 139, no. 11; Smithsonian Institution. Publication 4417; Publication (Smithsonian Institution) -- 4417
Publisher: Smithsonian Institution
Published: 1960
Place of publication: Washington, D.C
Language: eng
Number of pages: 37
Subjects: Birds -- Classification
Notes: Bibliography: p. 32-37