APA (7th ed.) Citation

Duffy, C. (1996). Siege warfare Siege warfare.

Chicago Style (17th ed.) Citation

Duffy, Christopher. "Siege Warfare." Siege Warfare 1996.

MLA (8th ed.) Citation

Duffy, Christopher. "Siege Warfare." Siege Warfare, 1996.

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