Howatt, A. P. R., & Widdowson, H. G. (2004). A history of English language teaching (2nd ed.). Oxford University Press.
Chicago Style (17. basım) AtıfHowatt, Anthony P. R., ve H. G. Widdowson. A History of English Language Teaching. 2nd ed. Oxford ; New York: Oxford University Press, 2004.
MLA (8th ed.) AtıfHowatt, Anthony P. R., ve H. G. Widdowson. A History of English Language Teaching. 2nd ed. Oxford University Press, 2004.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..