Utilization of oil shale:   progress and prospects / 
United Nations Department of Economic and Social Affairs (DESA) 
 - New York :  DESA,  1967 
 - 112 p. :  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum--Oil-shale industry
<br/><br/><label>Dewey Class. No.: </label>553.28  / DESA