APA (7th ed.) Citation

Gazdar, G. (1989). Natural language processing in LISP: An introduction to computational linguistics. Addison-Wesley.

Chicago Style (17th ed.) Citation

Gazdar, Gerald. Natural Language Processing in LISP: An Introduction to Computational Linguistics. Workingham, Eng: Addison-Wesley, 1989.

MLA (9th ed.) Citation

Gazdar, Gerald. Natural Language Processing in LISP: An Introduction to Computational Linguistics. Addison-Wesley, 1989.