Pulman, S., Ritchie, G., Russell, G., Black, A., Briscoe, E., Boguraev, B., . . . Grover, C. (1997). The Lexical Component of a Natural Language Toolkit.
芝加哥风格引文Pulman, S., G. Ritchie, G. Russell, A. Black, E. Briscoe, B. Boguraev, J. Carroll, 与 C. Grover. The Lexical Component of a Natural Language Toolkit. 1997.
MLA引文Pulman, S., et al. The Lexical Component of a Natural Language Toolkit. 1997.
警告：这些引文格式不一定是100％准确.