APA (7th ed.) Citation

Gabriel, R. A. (2011). Hannibal: The military biography of Rome's greatest enemy. Potomac Books.

Chicago Style (17th ed.) Citation

Gabriel, Richard A. Hannibal: The Military Biography of Rome's Greatest Enemy. Washington, D.C.: Potomac Books, 2011.

MLA (9th ed.) Citation

Gabriel, Richard A. Hannibal: The Military Biography of Rome's Greatest Enemy. Potomac Books, 2011.