Não informado. (2004). Fossil energy update. Energy Research and Development Administration, Technical Information Center.
Lua i Stíl Chicago (17ú heag.)Não informado. Fossil Energy Update. Oak Ridge, Tenn: Energy Research and Development Administration, Technical Information Center, 2004.
Lua MLA (8ú heag.)Não informado. Fossil Energy Update. Energy Research and Development Administration, Technical Information Center, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.