Harak, A.E. <br/><br/>
Some results from the operation of a 150-tom oil shale retort (BM-TPR 30) 
Harak, A.E. 
 - Washington  Bureau of mines  1971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PIZARRA BITUMINOSA
<br/><br/><label>Universal Decimal Class. No.: </label>622:552.578.3