Sorensen, R. T. <br/><br/>
Flotation treatment of experimental iron ore tailing from Champion .  Marquette range, Michigan.   
Sorensen, R. T. 
 - Washington  Bureau of mines  1964 
 - RI  6532 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>flotación<br/>menas de hierro
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Champion, mina (Michigan, E.E.U.U.)
<br/><br/><label>Universal Decimal Class. No.: </label>621.928.5 : 622.341 (774) (47)