Cita APA (7a ed.)

Dear, I. C. (1989). Oxford english: A guide to the language. Oxford University Press.

Cita Chicago Style (17a ed.)

Dear, Ian C.B. Oxford English: A Guide to the Language. Oxford [etc.]: Oxford University Press, 1989.

Cita MLA (9a ed.)

Dear, Ian C.B. Oxford English: A Guide to the Language. Oxford University Press, 1989.