Petroleum market shares 

 - Washington, D.C. :  U.S. Dept. of energy,  1978 
 - 14 p. :  ill. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil fields<br/>Oil (Petroleum)
<br/><br/><label>Dewey Class. No.: </label>553.28