APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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