Harrison, M. (2012). Cambridge English: Proficiency practice tests : with key : five tests for Cambridge English : proficiency: Mark Harrison. Oxford University Press.
芝加哥风格引文Harrison, Mark. Cambridge English: Proficiency Practice Tests : With Key : Five Tests for Cambridge English : Proficiency: Mark Harrison. Oxford: Oxford University Press, 2012.
MLA引文Harrison, Mark. Cambridge English: Proficiency Practice Tests : With Key : Five Tests for Cambridge English : Proficiency: Mark Harrison. Oxford University Press, 2012.
警告：这些引文格式不一定是100％准确.