APA (7th ed.) Zitazioa
ebrary, Inc, Fox, B. A., & Hopper, P. J. (1994). Voice: Form and function. John Benjamins Pub. Co..
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Barbara A. Fox, eta Paul J. Hopper. Voice: Form and Function. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 1994.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Voice: Form and Function. John Benjamins Pub. Co., 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.