Burwel, Edward <br/><br/>
Permeability changes and compaction of broken oil shale: during retorting 
Burwel, Edward; Tihen, Samuel S.; Sohns, H. W. 
 - Washington  Bureau of mines  1974 
 - 16 p. 
 - RI 7860 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERALOGIA<br/>MINERALOGY
<br/><br/><label>Subjects--Index Terms: </label>ESQUISTO BITUMINOSO PIZARRAS BITUMINOSAS 
<br/><br/><label>Universal Decimal Class. No.: </label>549