richard E Korf <br/><br/>
lEARNING TO SOLVE PROBLEMS BY SEARCHING for micro operators 

 - 
 -  Pitman  1985 
 - 147 
<br/><br/>  
<br/><br/><label>ISBN: </label>0-273-08690-1 
<br/><br/><label>Dewey Class. No.: </label>004.8