Levorsen, A. I. <br/><br/>
Geology of petroleum. 

 - Delhi :  CBS Publishers,  1985. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum -- Geology.--Petroleum -- Geology.
<br/><br/><label>LC Class. No.: </label>TN 870.5 LEV 1985