Cita APA (7th ed.)

Widdowson, H. G. (1979). Explorations in applied linguistics. Oxford University Press.

Cita Chicago (17th ed.)

Widdowson, H. G. Explorations in Applied Linguistics. Londres: Oxford University Press, 1979.

Cita MLA (9th ed.)

Widdowson, H. G. Explorations in Applied Linguistics. Oxford University Press, 1979.