Attiga, A. A. (1981). The Economic Development of the oil Exporting Countries. Oxford University.
Lua i Stíl Chicago (17ú heag.)Attiga, Ali Ahmed. The Economic Development of the Oil Exporting Countries. England: Oxford University, 1981.
Lua MLA (9ú heag.)Attiga, Ali Ahmed. The Economic Development of the Oil Exporting Countries. Oxford University, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.