Gaya APA

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

Gaya Chicago

Cunningham, Sarah, Bowler, Bill. New Headway Pronunciation Course. Oxford: Oxford University Press, 1999. Text.

Gaya MLA

Cunningham, Sarah, Bowler, Bill. New Headway Pronunciation Course. Oxford: Oxford University Press, 1999. Text.

Gaya Turabian

Cunningham, Sarah, Bowler, Bill. New Headway Pronunciation Course. Oxford: Oxford University Press, 1999. Print.