00251nam a2200097Ia 4500080001800000100002000018245006100038260002500099300001000124583001900134  a08.11.06 O685  aBoussena, Sadek  aViewpoint : OPEC series 1990 : [a selection of speeches]  bOPECaViennaATc199?  a93 p.  c3/7/00kM2LMGR