Wilson, K., Falla, T., & Davies, P. A. (2007). Smart choice: Workbook 1. Oxford: Oxford Univ Press.
Chicago Style CitationWilson, Ken., Tim Falla, i Paul A. Davies. Smart Choice: Workbook 1. Oxford: Oxford Univ Press, 2007.
Cita MLAWilson, Ken., Tim Falla, i Paul A. Davies. Smart Choice: Workbook 1. Oxford: Oxford Univ Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.