Al-Otaiba, Mana Said. L'OPEP et l'industrie pétrolière / Mana Said Al-Otaiba. - London : Croom Helm, 1978. - 219 p. ; 24 cm. Subjects--Topical Terms: Organization of Petroleum Exporting Countries.Petroleum industry and trade--Middle East. LC Class. No.: HD9560.5 / .A46 1978