CASE,E.Karl. <br/><br/>
Principals of Economics. 

 - 9th Ed. 
 - New Jersey  Prentice-Hall  2009 
 - 811p.  cm 
<br/><br/><label>ISBN: </label>9780137141456 
<br/><br/><label>Dewey Class. No.: </label>330 CAS