Richards, J. C., & Bycina, D. (1985). Person to Person: Communicative Speaking and Listening Skills. Oxford: Oxford University Press.
Παραπομπή Chicago StyleRichards, Jack C., και David Bycina. Person to Person: Communicative Speaking and Listening Skills. Oxford: Oxford University Press, 1985.
Παραπομπή MLARichards, Jack C., και David Bycina. Person to Person: Communicative Speaking and Listening Skills. Oxford: Oxford University Press, 1985.
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