University of Cambridge ESOL Examinations. (2007). Cambridge IELTS 6 Student's Book with Answers: Examination papers from University of Cambridge ESOL Examinations. Cambridge University Press.
Chicago-Zitierstil (17. Ausg.)University of Cambridge ESOL Examinations. Cambridge IELTS 6 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge: Cambridge University Press, 2007.
MLA-Zitierstil (9. Ausg.)University of Cambridge ESOL Examinations. Cambridge IELTS 6 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge University Press, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.