Lipsey, Richard G. <br/><br/>
An introduction to positive economics / 
Richard G. Lipsey. 
 - 7th edition 
 - London :  Weidenfeld and Nicolson,  [1989] 
 - xxii, 808 pages :  illustrations ;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0297795546 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.