O'Grady William, Dobrovolsky Michael, & Katamba Francis. (1997). Contemporary linguistic: An introduction. Pearson education ltd..
芝加哥风格引文O'Grady William, Dobrovolsky Michael, 与 Katamba Francis. Contemporary Linguistic: An Introduction. Harlow: Pearson education ltd., 1997.
MLA引文O'Grady William, et al. Contemporary Linguistic: An Introduction. Pearson education ltd., 1997.
警告：这些引文格式不一定是100％准确.