Cita APA (7th ed.)

Poyer, D. (2007). The threat. St. Martin's Press.

Cita Chicago (17th ed.)

Poyer, David. The Threat. New York: St. Martin's Press, 2007.

Cita MLA (9th ed.)

Poyer, David. The Threat. St. Martin's Press, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.