Richards, J. C. (2006). Person to Person: Communicative speaking and listening skills : Test booklet 2 (3rd ed.). Oxford: Oxford Univ. Press.
शिकागो स्टाइल उद्धरणRichards, Jack C. Person to Person: Communicative Speaking and Listening Skills : Test Booklet 2. 3rd ed. Oxford: Oxford Univ. Press, 2006.
एमएलए उद्धरणRichards, Jack C. Person to Person: Communicative Speaking and Listening Skills : Test Booklet 2. 3rd ed. Oxford: Oxford Univ. Press, 2006.
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