Comba, P. <br/><br/>
CaF2-enhanced HC1 leaching of a manganese-bearing silicate ore / 
by P. Comba, K.P.V. Lei, and T.G. Carnahan. 
 - Washington, D.C. :  U.S. Dept. of the Interior, Bureau of Mines,  1990. 
 - 7 p. 
 - Report of investigations ;  9372 .
 - United States.  Bureau of Mines.  Report of investigations ;  9372 .
 - Report of investigations (United States. Bureau of Mines ;  9372 .
<br/><br/><label>LCCN: </label>91010483 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manganese--Metallurgy.<br/>Leaching.<br/>Hydrochloric acid.