World Energy Conference. Conservation Commission. (1978). World energy: Looking ahead to 2020. Published for the World Energy Conference by IPC Science and Technology Press.
Čikaški stil citiranja (17. izdanje)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 način citiranja (9. izdanje)World Energy Conference. Conservation Commission. World Energy: Looking Ahead to 2020. Published for the World Energy Conference by IPC Science and Technology Press, 1978.
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