Mineral resources pamphlets: numbers 1-21 

 - Dar es Salaam  Department of Lands and Mines  196-? 
 - Various pagings  33cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources
<br/><br/><label>LC Class. No.: </label>GY QE327.T3M56