World Energy Conference. (1978). World energy resources, 1985-2020. IPC Science & Technology Press for the W.E.C..
Lua i Stíl Chicago (17ú heag.)World Energy Conference. World Energy Resources, 1985-2020. Guildford, UK: IPC Science & Technology Press for the W.E.C., 1978.
Lua MLA (9ú heag.)World Energy Conference. World Energy Resources, 1985-2020. IPC Science & Technology Press for the W.E.C., 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.