Harrison, M. (2001). CPE practice tests: Four new tests for the revised Cambridge Certificate of Proficiency in English. Oxford University Press.
芝加哥风格引文Harrison, Mark. CPE Practice Tests: Four New Tests for the Revised Cambridge Certificate of Proficiency in English. Oxford: Oxford University Press, 2001.
MLA引文Harrison, Mark. CPE Practice Tests: Four New Tests for the Revised Cambridge Certificate of Proficiency in English. Oxford University Press, 2001.
警告：这些引文格式不一定是100％准确.