Pattis, Richard E. <br/><br/>
Karel the robot :  a gentle introduction to the art of programming / 
Richard E. Pattis. 
 - 2nd. 
 - New York :  John Wiley & Sons,  1995. 
 - xiii, 160 p. :  ill. ;  23 cm. 
<br/><br/>Includes index. 
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>0471597252 
<br/><br/><label>LCCN: </label>948087  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer programming.