Schodt, D. W. The Ecuadorian Petroleum Sector during the Petroleum period: 1972-1983.
Cita Chicago (17th ed.)Schodt, David W. The Ecuadorian Petroleum Sector During the Petroleum Period: 1972-1983.
Cita MLA (9th ed.)Schodt, David W. The Ecuadorian Petroleum Sector During the Petroleum Period: 1972-1983.
Atenció: Aquestes cites poden no estar 100% correctes.