APA (7th ed.) Citation

United States. War Department. (1931). Signal Corps: Signal Corps test set, type EE-65. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Signal Corps: Signal Corps Test Set, Type EE-65. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. War Department. Signal Corps: Signal Corps Test Set, Type EE-65. GPO, 1931.

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