Levitt S D <br/><br/>
Rogue economist explores the hidden side of everything 
Levitt S D; Dubner S J 
 - USA  USA, Penguin Books  2005 
 - xii,242 
<br/><br/><label>ISBN: </label>0-713-9908-X 
<br/><br/><label>Source: </label>Textbook