APA (7th ed.) Citation

United States. Bureau of Biological Survey. (1935). Food habits of common hawks. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Biological Survey. Food Habits of Common Hawks. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

United States. Bureau of Biological Survey. Food Habits of Common Hawks. [s.n.], 1935.

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