United Nations. Economic Commission for Europe. (1978). New issues affecting the energy economy of the ECE region in the medium and long term. United Nations.
Style de citation Chicago (17e éd.)United Nations. Economic Commission for Europe. New Issues Affecting the Energy Economy of the ECE Region in the Medium and Long Term. New York: United Nations, 1978.
Style de citation MLA (8e éd.)United Nations. Economic Commission for Europe. New Issues Affecting the Energy Economy of the ECE Region in the Medium and Long Term. United Nations, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.