1.
Natural language processing in Prolog. Wokingham: Addison-Wesley; 1989.
Natural language processing in Prolog. Wokingham : Addison-Wesley, 21 mai 1989. ISBN 0-201-18053-7
Gazdar Gerald. (1989). Natural language processing in Prolog: An introduction to computational linguistics. Addison-Wesley.
Style de citation MLA (8e éd.)Gazdar Gerald. Natural Language Processing in Prolog: An Introduction to Computational Linguistics. Addison-Wesley, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.