Cita APA (7th ed.)
Eastwood, J. (1992). Oxford practice grammar (ed.). Oxford University Press.
Cita Chicago (17th ed.)
Eastwood, John. Oxford Practice Grammar. ed. Hong Kong: Oxford University Press, 1992.
Cita MLA (9th ed.)
Eastwood, John. Oxford Practice Grammar. ed. Oxford University Press, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.