Cita APA (7th ed.)

Pulman, S., Ritchie, G., Russell, G., Black, A., Briscoe, E., Boguraev, B., . . . Grover, C. (1997). The Lexical Component of a Natural Language Toolkit.

Cita Chicago (17th ed.)

Pulman, S., G. Ritchie, G. Russell, A. Black, E. Briscoe, B. Boguraev, J. Carroll, i C. Grover. The Lexical Component of a Natural Language Toolkit. 1997.

Cita MLA (9th ed.)

Pulman, S., et al. The Lexical Component of a Natural Language Toolkit. 1997.