Não informado. (1978). Fuel and Energy Abstracts. Institute of Energy Publication.
Lua i Stíl Chicago (17ú heag.)Não informado. Fuel and Energy Abstracts. London: Institute of Energy Publication, 1978.
Lua MLA (8ú heag.)Não informado. Fuel and Energy Abstracts. Institute of Energy Publication, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.