Energy and oil statistics : first quarter 

 - s.l.  OPEC  2011 
<br/><br/>0074 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PETROLEO<br/>ESTADISTICA
<br/><br/><label>Dewey Class. No.: </label>AV-CD  / 333.79 / O611 / 2011 - 1