A revision of the American vultures of the genus Cathartes
Series: Smithsonian miscellaneous collections -- v. 146, no. 6
Publisher: Smithsonian Institution
Published: 1964
Place of publication: Washington
Language: eng
Number of pages: 18
Subjects: Cathartes
Other titles: Revision of American vultures
Notes: Smithsonian Institution. Publication 4539.

Bibliography: p. 17-18.