Cita APA (7a ed.)

Eastwood, J. (1994). Oxford guide to english grammar. Oxford University Press.

Cita Chicago Style (17a ed.)

Eastwood, John. Oxford Guide to English Grammar. Oxford [etc.]: Oxford University Press, 1994.

Cita MLA (9a ed.)

Eastwood, John. Oxford Guide to English Grammar. Oxford University Press, 1994.