Viewpoint 1991 / 
a selection of speeches by the Secretary general and Presidents of the OPEC Conference. 
 - Vienna :  OPEC,  1992. 
 - 173 p. 
<br/><br/><label>ISBN: </label>3901139001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OPEP<br/>PETROLEO
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>RECURSOS NATURALES