Não informado. (1987). Power Engineering Journal. Institution of Electrical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Power Engineering Journal. Herts, Inglaterra: Institution of Electrical Engineers, 1987.
Lua MLA (8ú heag.)Não informado. Power Engineering Journal. Institution of Electrical Engineers, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.