McKinney, William A. <br/><br/>
Segregation of copper ores by direct-firing method 
McKinney, William A. 
 - Washington  Bureau of mines  1963 
 - RI 6215 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>METALLURGY
<br/><br/><label>Subjects--Index Terms: </label>METALES MINERALES DE COBRE HORNOS METALS COPPER ORES KILNS 
<br/><br/><label>Universal Decimal Class. No.: </label>669