Hydrometallurgical treatment of electronic scrap to recover gold and silver / 
by H.E. Hilliard ... [et al.]. 
 - [Avondale, Md.] :  U.S. Dept. of the Interior, Bureau of Mines,  1985. 
 - 20 p. : ill. 
 - Report of investigations ; 8940. .
 - Report of investigations (United States. Bureau of Mines) ; 8940 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Silver--Metallurgy.<br/>Hydrometallurgy.<br/>Precious metals--Recycling.<br/>Electronic materials--Recycling.<br/>Gold--Metallurgy.