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.
Citace podle Chicago (17th ed.)Richards, Jack C., David Bycina, Ingrid Wisniewska, a Genevieve Kocienda. Person to Person Communicative Speaking and Listening Skills. Teacherïs Book 1. 3a. ed. Nueva York: Oxford University Press, 2006.
Citace podle MLA (9th ed.)Richards, Jack C., et al. Person to Person Communicative Speaking and Listening Skills. Teacherïs Book 1. 3a. ed. Oxford University Press, 2006.
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