| Punct autorizat de acces - Subiect | |
| Subiect sau categorie de subiect | OPEC (Organization of the Petroleum Exporting Countries) |
| Element de intrare | |
| Autoritate | OPEC (Organization of the Petroleum Exporting Countries) |
250
__
$aOPEC (Organization of the Petroleum Exporting Countries)
299 __ $aOPEC (Organization of the Petroleum Exporting Countries)
299 __ $aOPEC (Organization of the Petroleum Exporting Countries)