APA (7th ed.) Citation

United States. War Department. (1921). Magazines of 47 and of 97 round capacity for Lewis aircraft machine gun. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. War Department. Magazines of 47 and of 97 Round Capacity for Lewis Aircraft Machine Gun. Washington: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. War Department. Magazines of 47 and of 97 Round Capacity for Lewis Aircraft Machine Gun. [publisher not identified], 1921.