Hager, Dorsey. <br/><br/>
Practical oil geology, the application of geology to oil field problems 

 - 2 ed. 
 - New York :  McGraw-Hill,  1916 
 - 187 p.  : ilus. 
<br/><br/><label>LCCN: </label>24205 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petróleo.
<br/><br/><label>Dewey Class. No.: </label>553.282  / H33