Cita APA (7th ed.)

Widdowson, H. G. (1984). Exploration in applied linguistics 2. Oxford University Press.

Cita Chicago (17th ed.)

Widdowson, H. G. Exploration in Applied Linguistics 2. Oxford: Oxford University Press, 1984.

Cita MLA (9th ed.)

Widdowson, H. G. Exploration in Applied Linguistics 2. Oxford University Press, 1984.