Lua APA (7ú heag.)

Petroleum Report. Interfax-America Inc.

Lua i Stíl Chicago (17ú heag.)

Petroleum Report. Interfax-America Inc.

Lua MLA (9ú heag.)

Petroleum Report. Interfax-America Inc.

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