APA (7th ed.) Citation

United States. Armed Forces Radio Service. (1931). Radio Service bulletin. GPO.

Chicago Style (17th ed.) Citation

United States. Armed Forces Radio Service. Radio Service Bulletin. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Armed Forces Radio Service. Radio Service Bulletin. GPO, 1931.

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