APA (7th ed.) Zitazioa
O'Neill, E. (1954). Nine plays. The mordern library.
Chicago Style (17th ed.) Zitazioa
O'Neill, Eugene. Nine Plays. New York: The mordern library, 1954.
MLA (9th ed.) Zitazioa
O'Neill, Eugene. Nine Plays. The mordern library, 1954.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.