APA (7th ed.) Zitazioa
Open University, ebrary, Inc, & Swarbrick, A. (1994). Teaching modern languages. Routledge.
Chicago Style (17th ed.) Zitazioa
Open University, Inc ebrary, eta Ann Swarbrick. Teaching Modern Languages. New York: Routledge, 1994.
MLA (9th ed.) Zitazioa
Open University, et al. Teaching Modern Languages. Routledge, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.