Mineral industries of :  Africa / 
U. S. Department of the Interior, Bureau of Mines. 
 - Washington:   United States Government Printing Office,   1989-1991.  
 - 2 v. :  tables, maps ;  28 cm. 
 -  III .
<br/><br/><label>ISBN: </label>0160359279 0160418070 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy<br/>Mines and minerals resources<br/>Mineralogy--Africa
<br/><br/><label>Dewey Class. No.: </label>549.6