APA
United Nations International Economic and Social Affairs (deptt of -), United Nations International Economic and Social Affairs (deptt of -), . (1983). Energy in the eighties. New: York United Nations USA.
Chicago
United Nations International Economic and Social Affairs (deptt of -), United Nations International Economic and Social Affairs (deptt of -), . 1983. Energy in the eighties. New: York United Nations USA.
Harvard
United Nations International Economic and Social Affairs (deptt of -), United Nations International Economic and Social Affairs (deptt of -), . (1983). Energy in the eighties. New: York United Nations USA.
MLA
United Nations International Economic and Social Affairs (deptt of -), United Nations International Economic and Social Affairs (deptt of -), . Energy in the eighties. New: York United Nations USA. 1983.