GAYKO, G.; BILETSKY, V. Development of the oil industry in the USA in the 20th century (Part II). Skhid, [S. l.], n. 6(158), p. 41–45, 2019. DOI: 10.21847/1728-9343.2018.6(158).155046. Disponível em: https://skhid.kubg.edu.ua/article/view/155046. Acesso em: 26 nov. 2024.