Haas, L. A. <br/><br/>
Low pressure leaching of Duluth complex matte / 
by L.A. Haas, R.B. Schluter, and R.H. Nafziger. 
 - Pgh. [i.e. Pittsburgh], Pa. :  U.S. Dept. of the Interior, Bureau of Mines,  [1981?] 
 - 12 p. :  ill. ;  27 cm. 
 - Report of investigations ;  8522 .
 - Report of investigations (United States. Bureau of Mines) ;  8522. .
<br/><br/> Errata sheet inserted. 
<br/><br/>Bibliography: p. 12. 
<br/><br/><label>LCCN: </label>80606897  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nickel--Metallurgy.<br/>Leaching.<br/>Electrolytes.<br/>Mattes.
<br/><br/><label>LC Class. No.: </label>TN23  TN799.N6  / .U43 no. 8522 
<br/><br/><label>Dewey Class. No.: </label>622 s  669/.7332 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.23:8522