Viewpoint OPEC series. 

 - Viena  OPEC  1990 
 -  ilus. 
<br/><br/>09283 - 09284 
<br/><br/> Presidents of the OPEC conference.Secretary general, OPEC secretariat. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OPEC<br/>INFORME ANAUAL<br/>INFORME DE GESTION<br/>AUSTRIA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>AT
<br/><br/><label>Dewey Class. No.: </label>RIM  / 56