Hager, Dorsey. <br/><br/>
Oil-field practice 

 - New York :  McGraw-Hill,  1921 
 - 310 p.  : ilus. 
<br/><br/><label>LCCN: </label>24203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petróleo.
<br/><br/><label>Dewey Class. No.: </label>622.3382  / H33