Gaya APA

Grellet, Francoise, Maley, Alan, Welsing, Wim. (1982). Quartet Student's Book . Oxford: Oxford University Press.

Gaya Chicago

Grellet, Francoise, Maley, Alan, Welsing, Wim. Quartet Student's Book. Oxford: Oxford University Press, 1982. Text.

Gaya MLA

Grellet, Francoise, Maley, Alan, Welsing, Wim. Quartet Student's Book. Oxford: Oxford University Press, 1982. Text.

Gaya Turabian

Grellet, Francoise, Maley, Alan, Welsing, Wim. Quartet Student's Book. Oxford: Oxford University Press, 1982. Print.