APA (7th ed.) Zitazioa

Murphy, R. (1994). Essential grammar in use (1a. ed.). Cambridge university press.

Chicago Style (17th ed.) Zitazioa

Murphy, Raymond. Essential Grammar in Use. 1a. ed. Madrid: Cambridge university press, 1994.

MLA (9th ed.) Zitazioa

Murphy, Raymond. Essential Grammar in Use. 1a. ed. Cambridge university press, 1994.