Oil shale,tar sandsand Related materials. 

 - Washington  D.C   American Chemical Society 
<br/><br/><label>ISBN: </label>0841206406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil  Shales Congresses.
<br/><br/><label>LC Class. No.: </label>TN 858 .A1035