APA (7th ed.) Citation

United States. Army. Signal Corps. (1931). Radio telephone and telegraph; subcourse for company and communication officers. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Signal Corps. Radio Telephone and Telegraph; Subcourse for Company and Communication Officers. [United States]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Army. Signal Corps. Radio Telephone and Telegraph; Subcourse for Company and Communication Officers. [publisher not identified], 1931.