Gazdar, G., & Mellish, C. (1989). Natural language processing in Prolog: An introduction to computational linguistics. Addison-Wesley.
Citazione stile Chigago Style (17a edizione)Gazdar, Gerald, e Chris Mellish. Natural Language Processing in Prolog: An Introduction to Computational Linguistics. Wokingham, Eng: Addison-Wesley, 1989.
Citatione MLA (9a ed.)Gazdar, Gerald, e Chris Mellish. Natural Language Processing in Prolog: An Introduction to Computational Linguistics. Addison-Wesley, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.