Pahlman, J. E. <br/><br/>
Leaching of domestic manganese ores with dissolved SO b2 s / 
by John E. Pahlman and Sanaa E. Khalafalla. 
 - Avondale, Md. :  U.S. Dept. of the Interior, Bureau of Mines,  1987. 
 - 15p. 
 - Report of investigations / United States Department of the Interior, Bureau of Mines .
 - Report of investigations (United States. Bureau of Mines) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manganese--Metallurgy.<br/>Leaching.<br/>Sulphur dioxide.
<br/><br/><label>LC Class. No.: </label>TN23  TN799.M3  / .U43