APA (7th ed.) Citation

United Nations. Economic Commission for Europe. (1974). Building regulations in ECE countries. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Economic Commission for Europe. Building Regulations in ECE Countries. New York: United Nations, 1974.

MLA (8th ed.) Citation

United Nations. Economic Commission for Europe. Building Regulations in ECE Countries. United Nations, 1974.