Deurbrouck, Albert W. <br/><br/>
Washability examinations of Colorado coals 
Albert W. Deurbrouck 
 - Washington  Bureau of Mines  1970 
 - ii, 44 p.  il   26 cm 
 - RI  7467 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>coal
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Colorado
<br/><br/><label>Subjects--Index Terms: </label>Coal washing 
<br/><br/><label>Universal Decimal Class. No.: </label>622