Haas, L. A. <br/><br/>
Influence of chelating reagents on leaching of copper ore / 
by Larry A. Haas and Terry L. Hebble. 
 - Pittsburgh, Pa. :  U.S. Dept. of the Interior, Bureau of Mines,  1985. 
 - 12 p. :  ill. ;  28 cm. 
 - Report of investigations / U.S. Dept. of the Interior, Bureau of Mines ;  8965. .
 - Report of investigations (United States. Bureau of Mines) ;  8965. .
<br/><br/>Bibliography: p. 11-12. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copper--Metallurgy.<br/>Leaching.<br/>Chelates.
<br/><br/><label>LC Class. No.: </label>TN23  TN780  / .U43 no. 8965 
<br/><br/><label>Dewey Class. No.: </label>622 s  669.3�19