On coal conservation environment fusion general geothermal history nuclear solar space transportation :  energy films 

 - Washington, D.C. :  United States  Department of Energy,  1978 
 - Various pagings ;  30 cm. 
<br/><br/> Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bitumen<br/>Coal
<br/><br/><label>Dewey Class. No.: </label>553.24