Conway, D., & Shirreffs, B. (2003). On course for IELTS: Student book. Oxford University Press.
芝加哥风格引文Conway, Darren, 与 Brett Shirreffs. On Course for IELTS: Student Book. Oxford: Oxford University Press, 2003.
MLA引文Conway, Darren, 与 Brett Shirreffs. On Course for IELTS: Student Book. Oxford University Press, 2003.
警告：这些引文格式不一定是100％准确.