Marshall, Alfred. <br/><br/>
Principles of economics :  an introductory volume. 

 - 8th ed. 
 - London :  Macmillan,  1966. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics -- Study and teaching -- Africa--Economics -- Study and teaching -- Africa--Economics -- Study and teaching -- Africa