APA (7th ed.) Zitazioa

Widdowson, H. G. (2003). Defining issues in english language teaching (1a. ed.). Oxford University.

Chicago Style (17th ed.) Zitazioa

Widdowson, H. G. Defining Issues in English Language Teaching. 1a. ed. Oxford: Oxford University, 2003.

MLA (9th ed.) Zitazioa

Widdowson, H. G. Defining Issues in English Language Teaching. 1a. ed. Oxford University, 2003.