Richard G. Lipsey <br/><br/>
An introduction to positive economics  
/ Richard G. Lipsey, K. Alec Chrystal 
 - 3rd ed. 
 - Ontario :  English language book society,   1963. 
 - xviii, 740 p. :   ill. ;  26 cm. 
<br/><br/>Includes index. 
<br/><br/><br/>eng. 
<br/><br/><label>ISBN: </label>NA  NA 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics<br/>International trade
<br/><br/><label>Dewey Class. No.: </label>330 LIP