APA (7th ed.) Citation

United States. War Department. (1919). Headspace adjustment for Browning machine guns; rescission of Circular No. 151, War Department, 1919. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. War Department. Headspace Adjustment for Browning Machine Guns; Rescission of Circular No. 151, War Department, 1919. Washington: [publisher not identified], 1919.

MLA (9th ed.) Citation

United States. War Department. Headspace Adjustment for Browning Machine Guns; Rescission of Circular No. 151, War Department, 1919. [publisher not identified], 1919.