Sheffrin Steven M <br/><br/>
Survey of economics:Principles and tools 
Sheffrin Steven M; Sullivan Arthur O 
 - New Jersey  New Jersey, Prentice Hall  2002 
 - xxvi,397 
<br/><br/><label>ISBN: </label>0-13-060143-8 
<br/><br/><label>Source: </label>Textbook