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

 - 9 
 -  Oxford University Press, Oxford  1999 
 - 640 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330  LIP-P9