Patterson Dan, W., <br/><br/>
Introduction to Artificial Intelligence and Expert Systems  
Dan, W. Patterson.  
 - New Delhi :  PHI Learning Private Limited,  c1990. 
 - xv, 447 p.:  [115] 
<br/><br/><label>ISBN: </label>9788120307773 
<br/><br/><label>Dewey Class. No.: </label>006.3  / PAT/INT