Revision of the avian genus Passerella
Subtitle: with special reference to the distribution and migration of the races in California
By: by H.S. Swarth
Series: Contribution from the Museum of Vertebrate Zoology of the University of California at Berkeley; University of California publications in zoology ; vol. 21, no. 4; University of California publications in zoology -- v. 21, no. 4.
Publisher: University of California Press
Published: 1920
Place of publication: Berkeley
Language: eng
Number of pages: 224
Subjects: Sparrows
Notes: Cover title.

"Literature cited": p. 212-216.