APA استشهاد

Howatt A P R & Widdowson H G. (2010). A history of english language teaching (2.). Oxford University Press.

استشهاد بنمط شيكاغو

Howatt A P R و Widdowson H G. A History of English Language Teaching. 2. Oxford: Oxford University Press, 2010.

MLA استشهاد

Howatt A P R و Widdowson H G. A History of English Language Teaching. 2. Oxford University Press, 2010.