Não informado. (1979). Energy technology. National Swedish Board for Technical Development.
Lua i Stíl Chicago (17ú heag.)Não informado. Energy Technology. Stockholm: National Swedish Board for Technical Development, 1979.
Lua MLA (8ú heag.)Não informado. Energy Technology. National Swedish Board for Technical Development, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.