APA (7th ed.) Citation

Keegan, J. (1993). A history of warfare / John Keegan. Hutchinson.

Chicago Style (17th ed.) Citation

Keegan, John. A History of Warfare / John Keegan. London: Hutchinson, 1993.

MLA (9th ed.) Citation

Keegan, John. A History of Warfare / John Keegan. Hutchinson, 1993.

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