Gaya APA

Maley, Alan, Gower, Roger. (1993). Speaking upper-intermediate . Oxford: Oxford University Press.

Gaya Chicago

Maley, Alan, Gower, Roger. Speaking upper-intermediate. Oxford: Oxford University Press, 1993. Buku.

Gaya MLA

Maley, Alan, Gower, Roger. Speaking upper-intermediate. Oxford: Oxford University Press, 1993. Buku.

Gaya Turabian

Maley, Alan, Gower, Roger. Speaking upper-intermediate. Oxford: Oxford University Press, 1993. Buku.