APA (7th ed.) Citation

United States. Bureau of Biological Survey. (1915). Revision of American marmots. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Biological Survey. Revision of American Marmots. [Washington]: GPO, 1915.

MLA (9th ed.) Citation

United States. Bureau of Biological Survey. Revision of American Marmots. GPO, 1915.

Warning: These citations may not always be 100% accurate.