Levorsen, A.I. <br/><br/>
Geology of petroleum/ 
A.I. Levorsen 
 - San Francisco:  W.H. Freeman and Company,  c1954. 
 - x,703 p.:  23 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><br/>English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum--Geology
<br/><br/><label>Dewey Class. No.: </label>553.282/LEG