Lipsey, Richard G., 1928-  Lipsey, Richard G., 1928- <br/><br/>
An introduction to positive economic. 

 - 5th ed. 
 - London :  Weidelfeld & Nicolson,  [1979 (1982)] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics -- Study and teaching -- Africa--Economics -- Study and teaching -- Africa--Economics -- Study and teaching -- Africa