Levitt, Steven D. <br/><br/>
Freakonomics :  a rogue economist explores the hidden side of everything / 
Steven D. Levitt and Stephen J. Dubner. 
 - 1st  ed. 
 - London :  Penguin,  2005. 
 - xii, 242  p. 
<br/><br/><label>ISBN: </label>071399908x : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Psychological aspects.<br/>Economics--Sociological aspects.