Deurbrouck, Albert W. <br/><br/>
Washability examinations of Wyoming coals 
Albert W. Deurbrouck 
 - Washington  Bureau of Mines  1971 
 - iii, 47 p.  il  26 cm. 
 - RI  7525 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>coal
<br/><br/><label>Subjects--Index Terms: </label>Coal washing 
<br/><br/><label>Universal Decimal Class. No.: </label>622.06