Nilsson Nils J. <br/><br/>
Principles of artficial intelligence. 

 - ed. 
 - New york :  springer,  1982. 
 - 476  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>computation.