Nilsson, Nils J. <br/><br/>
Principles of artificial intelligence 

 - New Delhi  Narosa Publishing  1980 
 - vii,477 p. 
<br/><br/><label>ISBN: </label>81-85198-29-2 
<br/><br/><label>Dewey Class. No.: </label>S/C-S/T D65,8(B):(S:72) M0;5