Jacobs, Howard D. <br/><br/>
Production of metallic concentrates from high-silica iron ores 

 - Washington  Bureau of Mines  1969 
 - 17 p.  il  26 cm 
 - RI  7314 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>iron ores
<br/><br/><label>Universal Decimal Class. No.: </label>669