Oxenden, C. (2012). New english file: Workbook. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoOxenden, Clive. New English File: Workbook. Oxford: Oxford University Press, 2012.
MLA引文Oxenden, Clive. New English File: Workbook. Oxford: Oxford University Press, 2012.
警告：這些引文格式不一定是100％准確.