APA (7th ed.) Citation

Widdowson H. G. (2002). Aspects of Language Teaching (5th ed.). Oxford, Open University Press, 2002.

Chicago Style (17th ed.) Citation

Widdowson H. G. Aspects of Language Teaching. 5th ed. Oxford, Open University Press, 2002, 2002.

MLA (9th ed.) Citation

Widdowson H. G. Aspects of Language Teaching. 5th ed. Oxford, Open University Press, 2002, 2002.