Lipsey, Richard G. <br/><br/>
An introduction to positive economics / 
Richard G. Lipsey. 
 - 7th ed. 
 - London:   Weidenfeld and Nicolson,   1989.  
 - 808 p. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0297795554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330