Lipsey, Richard G. <br/><br/>
An introduction to positive economics / 
Richard G. Lipsey. 
 - 6th edition 
 - London :  Weidenfeld and Nicolson,  [1983] 
 - xxv, 790 pages :  illustrations ;  23 cm 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0297782657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Introduction Economics.