APA (7th ed.) Citation

United States. Bureau of Biological Survey. (1938). Officials and organizations concerned with wildlife protection, 1938 [directory]. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Biological Survey. Officials and Organizations Concerned with Wildlife Protection, 1938 [directory]. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Biological Survey. Officials and Organizations Concerned with Wildlife Protection, 1938 [directory]. [s.n.], 1938.

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