APA (7th ed.) Citation

United States. National Defense Advisory Commission. (1941). Defense, Vol. 2, No. 4. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Defense Advisory Commission. Defense, Vol. 2, No. 4. [Washington]: [s.n.], 1941.

MLA (9th ed.) Citation

United States. National Defense Advisory Commission. Defense, Vol. 2, No. 4. [s.n.], 1941.