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