Plag, I. (2007). Introduction to English linguistics (1st. ed.). Mouton de Gruyter.
芝加哥风格引文Plag, Ingo. Introduction to English Linguistics. 1st. ed. Berlin ; New York: Mouton de Gruyter, 2007.
MLA引文Plag, Ingo. Introduction to English Linguistics. 1st. ed. Mouton de Gruyter, 2007.
警告：这些引文格式不一定是100％准确.