Beck, Elfred <br/><br/>
Geology and oil resources of Colombia: the coastal plain 

 - Lancaster, PA  Society of Economic Geologists  November 1921 
 - pp. 457-473  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EXPLORACION DE PETROLEO<br/>GEOLOGIA ECONOMICA<br/>RECURSOS HIDRICOS<br/>RECURSOS PETROLIFEROS
<br/><br/><label>Subjects--Geographic Terms: </label><br/>COLOMBIA