Cunningham, S., & Bowler, B. (1999). New headway pronunciation: Intermediate student's practice book. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCunningham, Sarah, और Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford: Oxford University Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCunningham, Sarah, और Bill Bowler. New Headway Pronunciation: Intermediate Student's Practice Book. Oxford University Press, 1999.
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