National meeting of the Southern hemisphere on mineral techn <br/><br/>
Southern hemisphere on mineral technology 

 - [S.I.]  [s.n.]  1982 
 - 2v. (v.1-650; v.2-xvi, 657-1202 p.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrometallurgy
<br/><br/><label>Dewey Class. No.: </label>669.0283  / NAT