Rogerson, P., & Gilbert, J. B. (1990). Speaking clearly: Pronunciation and listening comprehension for learners of English. Cambridge, England ; Melbourne, Vic.: Cambridge University Press.
शिकागो स्टाइल उद्धरणRogerson, Pamela., और Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge, England ; Melbourne, Vic.: Cambridge University Press, 1990.
एमएलए उद्धरणRogerson, Pamela., और Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge, England ; Melbourne, Vic.: Cambridge University Press, 1990.
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