Oxenden, C. (1998). English file: Workbook. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoOxenden, Clive. English File: Workbook. Oxford: Oxford University Press, 1998.
Deismireacht MLAOxenden, Clive. English File: Workbook. Oxford: Oxford University Press, 1998.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.