APA (7th ed.) Citation

U.S. Fish and Wildlife Service. (1942). The House Rat, Feb. 1942 Revisions. [s.n.].

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. The House Rat, Feb. 1942 Revisions. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

U.S. Fish and Wildlife Service. The House Rat, Feb. 1942 Revisions. [s.n.], 1942.

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