World Energy Conference. Conservation Commission. (1978). World energy: Looking ahead to 2020. Published for the World Energy Conference by IPC Science and Technology Press.
Chicago-referens (17:e uppl.)World Energy Conference. Conservation Commission. World Energy: Looking Ahead to 2020. Guildford, [Eng.]: Published for the World Energy Conference by IPC Science and Technology Press, 1978.
MLA-referens (9:e uppl.)World Energy Conference. Conservation Commission. World Energy: Looking Ahead to 2020. Published for the World Energy Conference by IPC Science and Technology Press, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.