Cita APA (7a ed.)

Eastwood, J. (2006). Oxford practice grammar: Intermediate. Oxford University Press.

Cita Chicago Style (17a ed.)

Eastwood, John. Oxford Practice Grammar: Intermediate. Oxford: Oxford University Press, 2006.

Cita MLA (9a ed.)

Eastwood, John. Oxford Practice Grammar: Intermediate. Oxford University Press, 2006.