Mwadui kabla na baada ya Azimio la Arusha, 1940-1976 

 - Mwadui  Williamson Diamond Ltd  1976 
 - vi,42p.  26cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources
<br/><br/><label>LC Class. No.: </label>GY HD9677.M85