APA citiranje

Cunningham, S., & Sarah Cunningham; Bill Bowler. (1999). New Headway Pronunciation Course: Intermediate. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Cunningham, Sarah, và Sarah Cunningham; Bill Bowler. New Headway Pronunciation Course: Intermediate. Oxford: Oxford University Press, 1999.

MLA citiranje

Cunningham, Sarah, và Sarah Cunningham; Bill Bowler. New Headway Pronunciation Course: Intermediate. Oxford: Oxford University Press, 1999.