LIPSEY RICHARD G.  CHRYSTAL K. ALEC <br/><br/>
AN INTRODUCTION TO POSITIVE ECONOMICS 

 - 8th ED. 
 - OXFORD:  OXFORD UNIVERSITY PRESS,  1996. 
<br/><br/><label>ISBN: </label>0194424545. 
<br/><br/><label>Dewey Class. No.: </label>QTO 330 LIP