University of Cambridge. (2008). Speaking test preparation pack for Certificate in Advanced English (1a. ed.). University of Cambridge.
Chicago-Zitierstil (17. Ausg.)University of Cambridge. Speaking Test Preparation Pack for Certificate in Advanced English. 1a. ed. Cambridge: University of Cambridge, 2008.
MLA-Zitierstil (9. Ausg.)University of Cambridge. Speaking Test Preparation Pack for Certificate in Advanced English. 1a. ed. University of Cambridge, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.