APA (7th ed.) Zitazioa
Proulx, A. (1998). Brokeback mountain. Fourth Estate.
Chicago Style (17th ed.) Zitazioa
Proulx, Annie. Brokeback Mountain. London: Fourth Estate, 1998.
MLA (9th ed.) Zitazioa
Proulx, Annie. Brokeback Mountain. Fourth Estate, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.