Cita APA (7th ed.)
Irvine, M. (1999). Commercially Speaking. Workbook (1a. ed.). Oxford University Press.
Cita Chicago (17th ed.)
Irvine, Mark. Commercially Speaking. Workbook. 1a. ed. Buenos Aires: Oxford University Press, 1999.
Cita MLA (9th ed.)
Irvine, Mark. Commercially Speaking. Workbook. 1a. ed. Oxford University Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.