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Petroleum industry and trade

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International economic relations --- Arab states

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Petroleum technology. Petrochemistry --- International economic relations --- Law of international organizations --- Arab States --- Petroleum industry and trade --- Organization of Arab Petroleum Exporting Countries --- industrie de la petrochimie --- pays de l'opep --- petrochemische nijverheid --- Arab states --- geschiedenis --- oprichting oapec --- histoire --- création oapec --- Petroleum industry and trade - Arab countries