Essentials of economics 
Gregory, Paul R. 
 - 6th Edition. 
 -  Pearson Education, Inc.  2005 
 - xvi, 332 pages 
<br/><br/>
<br/><br/><label>ISBN: </label>0-321-24852-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>Dewey Class. No.: </label>330 G86e 2005