Sparks, N. (2011). True believer. Sphere, Warner Books.
Chicago Style aipamenaSparks, Nicholas. True Believer. London : New York: Sphere, Warner Books, 2011.
MLA aipamenaSparks, Nicholas. True Believer. Sphere, Warner Books, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.