Allen, James 1960- Natural language understanding - 2nd ed. - Redwood City, Calif. : Benjamin/Cummings Pub. Co., 1995 - 654 p. Subjects--Topical Terms: PROGRAMMING LANGUAGES (ELECTRONIC COMPUTERS)--SEMANTICSLANGUAGE AND LOGICARTIFICIAL INTELLIGENCE LC Class. No.: QA76.7 / A44N 1995