Rich, Elaine. <br/><br/>
Artificial intelligence / 
Elaine Rich, Kevin Knight. 
 - 2nd ed. 
 - New York :  McGraw-Hill,  c1991. 
 - xvii, 621 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 583-603) and indexes. 
<br/><br/><label>ISBN: </label>0071008942 9780071008945 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial intelligence.