Lipsey, Richard G and Chrystal, K Alec <br/><br/>
Principles of economics. 

 - 9th ed. 
 - New York    Oxford University  1999 
<br/><br/><label>ISBN: </label>019877639X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330.1 LIP