Richards, J. C. (2006). Person to Person: Communicative speaking and listening skills : Test booklet 1 (3rd ed.). Oxford: Oxford Univ. Press.
Παραπομπή Chicago StyleRichards, Jack C. Person to Person: Communicative Speaking and Listening Skills : Test Booklet 1. 3rd ed. Oxford: Oxford Univ. Press, 2006.
Παραπομπή MLARichards, Jack C. Person to Person: Communicative Speaking and Listening Skills : Test Booklet 1. 3rd ed. Oxford: Oxford Univ. Press, 2006.
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