APA (7th ed.) Zitazioa

Eastwood, J. (1992). Oxford practice grammar (ed.). Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Eastwood, John. Oxford Practice Grammar. ed. Hong Kong: Oxford University Press, 1992.

MLA (9th ed.) Zitazioa

Eastwood, John. Oxford Practice Grammar. ed. Oxford University Press, 1992.