United Nations. Economic Commission for Europe. Committee on Housing, Building and Planning, & United Nations. Economic Commission for Europe. Secretariat. (1986). Human settlements situation in the ECE region around 1980. United Nations.
Cita Chicago (17th ed.)United Nations. Economic Commission for Europe. Committee on Housing, Building and Planning, i United Nations. Economic Commission for Europe. Secretariat. Human Settlements Situation in the ECE Region Around 1980. New York: United Nations, 1986.
Cita MLA (8th ed.)United Nations. Economic Commission for Europe. Committee on Housing, Building and Planning, i United Nations. Economic Commission for Europe. Secretariat. Human Settlements Situation in the ECE Region Around 1980. United Nations, 1986.