United Nations. Statistical Office. (1979). World energy supplies, 1973-1978. United Nations.
Čikaški stil citiranja (17. izdanje)United Nations. Statistical Office. World Energy Supplies, 1973-1978. New York: United Nations, 1979.
MLA način citiranja (8. izdanje)United Nations. Statistical Office. World Energy Supplies, 1973-1978. United Nations, 1979.
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