Marks, J. (2007). English pronunciation in use: Elementary with Audio CDs. New York: Cambridge university press.
शिकागो स्टाइल उद्धरणMarks, Jonathan. English Pronunciation in Use: Elementary With Audio CDs. New York: Cambridge university press, 2007.
एमएलए उद्धरणMarks, Jonathan. English Pronunciation in Use: Elementary With Audio CDs. New York: Cambridge university press, 2007.
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