Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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