APA (7th ed.) Zitazioa

Richards, J. C., Bycina, D., Wisniewska, I., & London, A. (2006). Person to person communicative speaking and listening skills. Test booklet 1 (3a. ed.). Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Richards, Jack C., David Bycina, Ingrid Wisniewska, eta Andy London. Person to Person Communicative Speaking and Listening Skills. Test Booklet 1. 3a. ed. Nueva York: Oxford University Press, 2006.

MLA (9th ed.) Zitazioa

Richards, Jack C., et al. Person to Person Communicative Speaking and Listening Skills. Test Booklet 1. 3a. ed. Oxford University Press, 2006.