Oxenden, C. (1999). English file: Teacher's book. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoOxenden, Clive. English File: Teacher's Book. Oxford: Oxford University Press, 1999.
MLA引文Oxenden, Clive. English File: Teacher's Book. Oxford: Oxford University Press, 1999.
警告：這些引文格式不一定是100％准確.