Allen, James. <br/><br/>
Natural language understanding / 
by James Allen. 
 - Menlo Park, Calif. :  Benjamin/Cummings,  1987. 
 - xv, 574 p. 
<br/><br/><label>ISBN: </label>0805303308 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial intelligence.<br/>Programming languages (Electronic computers)--Semantics.<br/>Language and logic.