Revision of the American pikas
Subtitle: (genus Ochotona)
By: By Arthur H. Howell.
Series: U.S. Dept. of agriculture. Bureau of biological survey. North American fauna no. 47
Publisher: Govt. print. off.
Published: 1924
Place of publication: Washington
Language: eng
Number of pages: 57
Subjects: Pikas.
Description: Discusses distribution, habitat, habits, pelage, molt, specimens, history, and nomenclature of pikas. Provides descriptions, locations, and a key for species and subspecies.