APA (7th ed.) Citation

Roth, J. P. (2009). Roman warfare (1st published.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Roth, Jonathan P. Roman Warfare. 1st published. Cambridge [etc.]: Cambridge University Press, 2009.

MLA (9th ed.) Citation

Roth, Jonathan P. Roman Warfare. 1st published. Cambridge University Press, 2009.