Richards, J. C., Bycina, D., Wisniewska, I., & Kocienda, G. (2006). Person to person communicative speaking and listening skills. Teacherïs book 1 (3a. ed.). Oxford University Press.
Chicago-Zitierstil (17. Ausg.)Richards, Jack C., David Bycina, Ingrid Wisniewska, und Genevieve Kocienda. Person to Person Communicative Speaking and Listening Skills. Teacherïs Book 1. 3a. ed. Nueva York: Oxford University Press, 2006.
MLA-Zitierstil (9. Ausg.)Richards, Jack C., et al. Person to Person Communicative Speaking and Listening Skills. Teacherïs Book 1. 3a. ed. Oxford University Press, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.