APA (7th ed.) Citation

Overy, R. J. (2014). A history of war in 100 battles. Collins.

Chicago Style (17th ed.) Citation

Overy, Richard J. A History of War in 100 Battles. London: Collins, 2014.

MLA (9th ed.) Citation

Overy, Richard J. A History of War in 100 Battles. Collins, 2014.