Oxenden, C. (2009). American English file: Workbook 4. Oxford: Oxford University Press.
Chicago Style citaatOxenden, Clive. American English File: Workbook 4. Oxford: Oxford University Press, 2009.
MLA citatieOxenden, Clive. American English File: Workbook 4. Oxford: Oxford University Press, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.