Oil shale retorting in a 150-ton batch-type pilot plant / 
by A.E. Harak ...[et al.] 
 - [Washington] :  U.S. Dept. of the Interior, Bureau of Mines,  1974. 
 - 31 p. :  ill. 
 - Report of investigations ;  7995 .
 - United States.  Bureau of Mines.  Report of investigations ;  7995 .
 - Report of investigations (United States. Bureau of Mines) ;  7995 .
<br/><br/> Based on work done in cooperation with the University of Wyoming. 
<br/><br/><label>LCCN: </label>91055185     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil shales.<br/>Shale oils-refining.