Featherston, S. (2001). Empty categories in sentence processing. J. Benjamins.
芝加哥风格引文Featherston, Sam. Empty Categories in Sentence Processing. Amsterdam ; Philadelphia: J. Benjamins, 2001.
MLA引文Featherston, Sam. Empty Categories in Sentence Processing. J. Benjamins, 2001.
警告：这些引文格式不一定是100％准确.