Doff, A., & Jones, C. (2000). Language in use: Pre-intermediate (New edition.). Cambridge University Press.
芝加哥风格引文Doff, Adrian, 与 Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge: Cambridge University Press, 2000.
MLA引文Doff, Adrian, 与 Christopher Jones. Language in Use: Pre-intermediate. New edition. Cambridge University Press, 2000.
警告：这些引文格式不一定是100％准确.