APA (7th ed.) Citation

United States. War Department. (1932). Radio sets, types SCR-131 and SCR-161. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Radio Sets, Types SCR-131 and SCR-161. [Washington]: GPO, 1932.

MLA (9th ed.) Citation

United States. War Department. Radio Sets, Types SCR-131 and SCR-161. GPO, 1932.

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