Bowler, B., & Bill Bowler; Sarah Cunningham. (1999). New Headway Pronunciation Course: Upper Intermediate. Oxford: Oxford University Press.
Chicago-стиль цитированияBowler, Bill, và Bill Bowler; Sarah Cunningham. New Headway Pronunciation Course: Upper Intermediate. Oxford: Oxford University Press, 1999.
MLA-цитированиеBowler, Bill, và Bill Bowler; Sarah Cunningham. New Headway Pronunciation Course: Upper Intermediate. Oxford: Oxford University Press, 1999.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.