APA (7th ed.) Citation

Chinn, G. M. (1951). The machine gun (Repr.). US Gov. Print. Off.

Chicago Style (17th ed.) Citation

Chinn, George M. The Machine Gun. Repr. Washington, DC: US Gov. Print. Off, 1951.

MLA (9th ed.) Citation

Chinn, George M. The Machine Gun. Repr. US Gov. Print. Off, 1951.

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