Não informado. (1977). Energy research abstracts. Technical Information Center.
Lua i Stíl Chicago (17ú heag.)Não informado. Energy Research Abstracts. Oak Ridge, Tenn: Technical Information Center, 1977.
Lua MLA (8ú heag.)Não informado. Energy Research Abstracts. Technical Information Center, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.