Citazione Stile APA (7a Edizione)

Widdowson, H. G. (1978). Teaching language as communication. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Widdowson, H. G. Teaching Language as Communication. Oxford: Oxford University Press, 1978.

Citatione MLA (9a ed.)

Widdowson, H. G. Teaching Language as Communication. Oxford University Press, 1978.