Cambridge ESOL. (2009). Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations: Cambridge ESOL.
Chicago-Zitierstil (17. Ausg.)Cambridge ESOL. Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations: Cambridge ESOL. Cambridge University Press, 2009.
MLA-Zitierstil (9. Ausg.)Cambridge ESOL. Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations: Cambridge ESOL. 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.