University of Cambridge. Local Examinations Syndicate. (2009). Cambridge IELTS: Examination papers from University of Cambridge ESOL Examinations : English for speakers of other languages. Cambridge University Press.
芝加哥风格引文University of Cambridge. Local Examinations Syndicate. Cambridge IELTS: Examination Papers from University of Cambridge ESOL Examinations : English for Speakers of Other Languages. Cambridge : New York ; New Delhi: Cambridge University Press, 2009.
MLA引文University of Cambridge. Local Examinations Syndicate. Cambridge IELTS: Examination Papers from University of Cambridge ESOL Examinations : English for Speakers of Other Languages. Cambridge University Press, 2009.
警告：这些引文格式不一定是100％准确.