APA (7th ed.) Citation

Hatcher, J. S., Wilhelm, G. P., & Malony, H. J. (1917). Machine guns. G. Banta.

Chicago Style (17th ed.) Citation

Hatcher, Julian S., Glenn P. Wilhelm, and Harry J. Malony. Machine Guns. Menasha, WI: G. Banta, 1917.

MLA (9th ed.) Citation

Hatcher, Julian S., et al. Machine Guns. G. Banta, 1917.