Levitt, Steven D.  1967- <br/><br/>
Freakonomics :  a rogue economist explores the hidden side of everything / 
by Steven D. Levitt ; Stephen J. Dubner. 
 - New York :  William Morrow,  2005. 
 - xii, 242 p. ;  24 cm. 
<br/><br/> With hard and supercover  Includes index 
<br/><br/>Notes: p. 219-230 
<br/><br/><label>ISBN: </label>006073132-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Psychological aspects<br/>Economics--Sociological aspects<br/>Economics