APA (7e ed.) Bronvermelding

Bianchi, T. (1993). Extraordinary friends (1. Auflage.). St. Martin's Press.

Chicago (17e ed.) Bronvermelding

Bianchi, Tom. Extraordinary Friends. 1. Auflage. New York: St. Martin's Press, 1993.

MLA (8e ed.) Bronvermelding

Bianchi, Tom. Extraordinary Friends. 1. Auflage. St. Martin's Press, 1993.