Style de citation APA (7e éd.)

United Nations. Economic Commission for Europe. (1991). Energy reforms in Central and Eastern Europe: The first year. United Nations.

Style de citation Chicago (17e éd.)

United Nations. Economic Commission for Europe. Energy Reforms in Central and Eastern Europe: The First Year. New York: United Nations, 1991.

Style de citation MLA (9e éd.)

United Nations. Economic Commission for Europe. Energy Reforms in Central and Eastern Europe: The First Year. United Nations, 1991.

Attention : ces citations peuvent ne pas être correctes à 100%.