Lipsey Richard G. <br/><br/>
An introduction to positive economics  / 
by Richard G. Lipsey 
 - \\  4th ed. 
 - London:  Weidenfeld and Nicolson,  1975 
 - xviii.827p.  ill. 
<br/><br/> Includes Index 
<br/><br/><label>LC Class. No.: </label>HB 171