APA (7th ed.) Citation

United Nations. Economic Commission for Europe. (1990). Directory of bodies concerned with urban and regional research. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Economic Commission for Europe. Directory of Bodies Concerned with Urban and Regional Research. New York: United Nations, 1990.

MLA (9th ed.) Citation

United Nations. Economic Commission for Europe. Directory of Bodies Concerned with Urban and Regional Research. United Nations, 1990.