APA (7th ed.) Citation

(1921). Cavalry: Duties of machine-gun personnel. GPO.

Chicago Style (17th ed.) Citation

Cavalry: Duties of Machine-gun Personnel. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

Cavalry: Duties of Machine-gun Personnel. GPO, 1921.

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