WALKER, Adrian : <br/><br/>
Knowledge systems and prolog : a logical approach to expert systems and natural  language processing 

 -  Reading Mass : Addison - Wesley  1987 
 - 475 p. 
<br/><br/><label>ISBN: </label>0000201090449 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Expert systems : prolog : knowledge engineering natural language
<br/><br/><label>Dewey Class. No.: </label>006.33  / K55