APA (7th ed.) Citation

United States. Armed Forces Radio Service. (1931). Commercial and Government radio stations of U.S.; edition of June 30, 1931. GPO.

Chicago Style (17th ed.) Citation

United States. Armed Forces Radio Service. Commercial and Government Radio Stations of U.S.; Edition of June 30, 1931. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Armed Forces Radio Service. Commercial and Government Radio Stations of U.S.; Edition of June 30, 1931. GPO, 1931.

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