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,  New York,  Oxford U.P.,  1970. 
 - x, 308 p.  maps.  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>019215639X 
<br/><br/><label>LCCN: </label>77505054  
<br/><br/><label>Nat. Bib. No.: </label>B70-07032 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa--Commerce.
<br/><br/><label>LC Class. No.: </label>HF3876  / .G68 
<br/><br/><label>Dewey Class. No.: </label>380.1/0967