APA (7th ed.) Zitazioa
Patterson, J., & Roughan, H. (2007). You've been warned. Vision.
Chicago Style (17th ed.) Zitazioa
Patterson, James, eta Howard Roughan. You've Been Warned. New York: Vision, 2007.
MLA (9th ed.) Zitazioa
Patterson, James, eta Howard Roughan. You've Been Warned. Vision, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.