A revision of the American vultures of the genus Cathartes
By: by Alexander Wetmore.
Series: Smithsonian miscellaneous collections -- v. 146, no. 6; Publication -- 4539; Publication (Smithsonian Institution) -- 4539.
Publisher: Smithsonian Institution
Published: 1964
Place of publication: Washington
Language: eng
Number of pages: 18
Subjects: Cathartes.; New World vultures
Other titles: Revision of American vultures
Notes: "August 14, 1964."

Includes bibliographical references (p. 17-18).