Metcalf, R., Cavey, C., & Greenwood, A. (2011). English unlimited: Upper intermediate. Self-study pack, Workbook with DVD-ROM, B2. Cambridge University Press.
Chicago-Zitierstil (17. Ausg.)Metcalf, Rob, Chris Cavey, und Alison Greenwood. English Unlimited: Upper Intermediate. Self-study Pack, Workbook with DVD-ROM, B2. Cambridge: Cambridge University Press, 2011.
MLA-Zitierstil (9. Ausg.)Metcalf, Rob, et al. English Unlimited: Upper Intermediate. Self-study Pack, Workbook with DVD-ROM, B2. Cambridge University Press, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.