APA引文
Cambridge University Press. (2005). Cambridge ielts 4: Examination papers from the University of Cambridge esol examinations for speakers of other languages. CUP.
芝加哥风格引文
Cambridge University Press. Cambridge Ielts 4: Examination Papers from the University of Cambridge Esol Examinations for Speakers of Other Languages. Cambridge: CUP, 2005.
MLA引文
Cambridge University Press. Cambridge Ielts 4: Examination Papers from the University of Cambridge Esol Examinations for Speakers of Other Languages. CUP, 2005.
警告：这些引文格式不一定是100％准确.