APA (7th ed.) Citation

Weir, W. (2008). 50 weapons that changed warfare: By William Weir. Pentagon Press.

Chicago Style (17th ed.) Citation

Weir, William. 50 Weapons That Changed Warfare: By William Weir. New Delhi: Pentagon Press, 2008.

MLA (9th ed.) Citation

Weir, William. 50 Weapons That Changed Warfare: By William Weir. Pentagon Press, 2008.