APA (7th ed.) Citation

O'Keeffe, P. (2015). Waterloo: The aftermath. Overlook Press.

Chicago Style (17th ed.) Citation

O'Keeffe, Paul. Waterloo: The Aftermath. New York, NY: Overlook Press, 2015.

MLA (9th ed.) Citation

O'Keeffe, Paul. Waterloo: The Aftermath. Overlook Press, 2015.