University of Cambridge ESOL Examinations. (2009). Cambridge IELTS 7 Student's Book with Answers: Examination papers from University of Cambridge ESOL Examinations. Cambridge University Press.
Chicago Style (17. basım) AtıfUniversity of Cambridge ESOL Examinations. Cambridge IELTS 7 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge: Cambridge University Press, 2009.
MLA (9th ed.) AtıfUniversity of Cambridge ESOL Examinations. Cambridge IELTS 7 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge University Press, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..