Finding and producing oil. 

 - Dallas :  Am.Petroleum Institute,  1939. 
 - 338 p. :  il. ;  27 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología económica<br/>Petróleo<br/>Recurso minero
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>553.982