СВЯЩЕНКО, З. OPEC ROLE AND INFLUENCE IN THE STRUGGLE FOR LEADERSHIP IN OIL PRODUCTION IN THE 60 – 70 ss. XX CENTURY. EAST EUROPEAN HISTORICAL BULLETIN, [S. l.], n. 6, 2018. DOI: 10.24919/2519-058x.6.123764. Disponível em: http://eehb.dspu.edu.ua/article/view/123764. Acesso em: 27 jul. 2024.