Gray, Richard, 1929- <br/><br/>
Pre-Colonial African Trade :  essays on trade in Central and Eastern Africa before 1900 / 
edited by Richard Gray and David Birmingham. 
 - London :  Oxford University Press,   1970. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>019215639X 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa --commerce.
<br/><br/><label>LC Class. No.: </label>HF 3876 GRA 1970