First group manager's conference at Mbeya, 7th-12th April 1975 

 - Dar es Salaam  STAMICO  1975 
 - ii,184p.  33cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining corporations
<br/><br/><label>LC Class. No.: </label>GY HD9506.T34T36