APA (7th ed.) Citation

United States. Army. Signal Corps. (1934). Information circular, homing pigeons. [s.n.].

Chicago Style (17th ed.) Citation

United States. Army. Signal Corps. Information Circular, Homing Pigeons. [Washington]: [s.n.], 1934.

MLA (9th ed.) Citation

United States. Army. Signal Corps. Information Circular, Homing Pigeons. [s.n.], 1934.

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