APA (7th ed.) Citation

Keegan. (1994). A history of warfare. Vintage Books.

Chicago Style (17th ed.) Citation

Keegan. A History of Warfare. New York: Vintage Books, 1994.

MLA (8th ed.) Citation

Keegan. A History of Warfare. Vintage Books, 1994.

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