Oxenden, C. (1996). English file: Listen and speak. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoOxenden, Clive. English File: Listen and Speak. Oxford: Oxford University Press, 1996.
MLA引文Oxenden, Clive. English File: Listen and Speak. Oxford: Oxford University Press, 1996.
警告：这些引文格式不一定是100％准确.