Gaya APA

Cunningham, Sarah : Bowler, Bill. (1990). Headway intermediate pronunciation . Oxford: Oxford University Press.

Gaya Chicago

Cunningham, Sarah : Bowler, Bill. Headway intermediate pronunciation. Oxford: Oxford University Press, 1990. Text.

Gaya MLA

Cunningham, Sarah : Bowler, Bill. Headway intermediate pronunciation. Oxford: Oxford University Press, 1990. Text.

Gaya Turabian

Cunningham, Sarah : Bowler, Bill. Headway intermediate pronunciation. Oxford: Oxford University Press, 1990. Print.