Gaya APA

Swan, Michael. (1989). Practical English Usage (1989). Hong Kong: Oxford University Press.

Gaya Chicago

Swan, Michael. Practical English Usage. 1989 Hong Kong: Oxford University Press, 1989. Text.

Gaya MLA

Swan, Michael. Practical English Usage. 1989 Hong Kong: Oxford University Press, 1989. Text.

Gaya Turabian

Swan, Michael. Practical English Usage. 1989 Hong Kong: Oxford University Press, 1989. Print.