APA (7th ed.) Citation

United States. Federal Radio Commission. (1931). Broadcasting radio stations of U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Federal Radio Commission. Broadcasting Radio Stations of U.S. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Federal Radio Commission. Broadcasting Radio Stations of U.S. GPO, 1931.

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