Não informado. (1979). Electrical Power and Energy Systems. IPC Science and Technology Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Electrical Power and Energy Systems. Guildford, Inglaterra: IPC Science and Technology Press, 1979.
Lua MLA (8ú heag.)Não informado. Electrical Power and Energy Systems. IPC Science and Technology Press, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.