Cita APA (7a ed.)

Widdowson, H. G. (1996). Linguistics. Oxford University Press.

Cita Chicago Style (17a ed.)

Widdowson, H. G. Linguistics. Oxford [etc.]: Oxford University Press, 1996.

Cita MLA (9a ed.)

Widdowson, H. G. Linguistics. Oxford University Press, 1996.