World Energy Council. 2010 survey of energy resources.
Lua i Stíl Chicago (17ú heag.)World Energy Council. 2010 Survey of Energy Resources.
Lua MLA (9ú heag.)World Energy Council. 2010 Survey of Energy Resources.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.