APA (7th ed.) Citation

(1993). Challenges in natural language processing (1. publ.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Challenges in Natural Language Processing. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 1993.

MLA (9th ed.) Citation

Challenges in Natural Language Processing. 1. publ. Cambridge Univ. Press, 1993.

Warning: These citations may not always be 100% accurate.