Pattis, Richard E.  <br/><br/>
Karel the robot:  a gentle introdcution to the art of programming  

 - New York   John Wiley and Sons  1981 
 - 106p.  
<br/><br/><label>ISBN: </label>0-471-08928-1 
<br/><br/><label>Subjects--Index Terms: </label>Computer programming  Robotics 
<br/><br/><label>Universal Decimal Class. No.: </label>621.52:681.31K  / PAT