Hartley, B. (1994). New American streamline departures: An intensive American English course for beginners (Student Book). New York: Oxford Univ. Press.
शिकागो स्टाइल उद्धरणHartley, Bernard. New American Streamline Departures: An Intensive American English Course for Beginners (Student Book). New York: Oxford Univ. Press, 1994.
एमएलए उद्धरणHartley, Bernard. New American Streamline Departures: An Intensive American English Course for Beginners (Student Book). New York: Oxford Univ. Press, 1994.
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