Cita APA (7th ed.)
Patterson, R. N. (2000). Protect and defend. Ballantine Books.
Cita Chicago (17th ed.)
Patterson, Richard North. Protect and Defend. New York: Ballantine Books, 2000.
Cita MLA (9th ed.)
Patterson, Richard North. Protect and Defend. Ballantine Books, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.