Geographic variation in Savannah sparrows of the inland southwest, Mexico, and Guatemala
By: John P. Hubbard.
Contributors: Delaware Museum of Natural History.
Series: Nemouria -- no. 12
Publisher: Delaware Museum of Natural History
Published: 1974
Place of publication: Greenville
Language: eng
Number of pages: 21
Subjects: Savannah sparrow.; Bird populations -- Mexico.; Bird populations -- Guatemala.
Notes: Caption title.

"January 31, 1974."

Includes bibliographical references.