APA
United Nations Economic And Social Affairs (Deptt of-), United Nations Economic And Social Affairs (Deptt of-), . (1974). World energy supplies. New: York United Nations USA.
Chicago
United Nations Economic And Social Affairs (Deptt of-), United Nations Economic And Social Affairs (Deptt of-), . 1974. World energy supplies. New: York United Nations USA.
Harvard
United Nations Economic And Social Affairs (Deptt of-), United Nations Economic And Social Affairs (Deptt of-), . (1974). World energy supplies. New: York United Nations USA.
MLA
United Nations Economic And Social Affairs (Deptt of-), United Nations Economic And Social Affairs (Deptt of-), . World energy supplies. New: York United Nations USA. 1974.