Watanabe, Ken. <br/><br/>
Problem solving 101 :   a simple book for smart people / 
Ken Watanabe. 
 - New York :   Portfolio,   2009. 
 - xii, 111 pages :   ill. ;   22 cm. 
<br/><br/><label>ISBN: </label>9780091929664 
<br/><br/><label>LC Class. No.: </label>BF449 .  / W37 P2009