APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.