(2003). Vol. 101, № 14; OiL and Gas journal. 2003.
Lua i Stíl Chicago (17ú heag.)Vol. 101, № 14; OiL and Gas Journal. 2003, 2003.
Lua MLA (9ú heag.)Vol. 101, № 14; OiL and Gas Journal. 2003, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.