University of Cambridge ESOL Examinations. (2006). Cambridge IELTS 5 Student's Book with Answers: Examination papers from University of Cambridge ESOL Examinations. Cambridge University Press.
Cita Chicago (17th ed.)University of Cambridge ESOL Examinations. Cambridge IELTS 5 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge: Cambridge University Press, 2006.
Cita MLA (9th ed.)University of Cambridge ESOL Examinations. Cambridge IELTS 5 Student's Book with Answers: Examination Papers from University of Cambridge ESOL Examinations. Cambridge University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.