Lua APA (7ú heag.)

Schodt, D. W. The Ecuadorian Petroleum Sector during the Petroleum period: 1972-1983.

Lua i Stíl Chicago (17ú heag.)

Schodt, David W. The Ecuadorian Petroleum Sector During the Petroleum Period: 1972-1983.

Lua MLA (9ú heag.)

Schodt, David W. The Ecuadorian Petroleum Sector During the Petroleum Period: 1972-1983.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.