Bowler, B., & Cunningham, S. (1999). New headway pronunciation course: Upper-intermediate. Oxford: Oxford University Press.
Chicago Style CitationBowler, Bill, and Sarah Cunningham. New Headway Pronunciation Course: Upper-intermediate. Oxford: Oxford University Press, 1999.
MLA CitationBowler, Bill, and Sarah Cunningham. New Headway Pronunciation Course: Upper-intermediate. Oxford: Oxford University Press, 1999.
Warning: These citations may not always be 100% accurate.