APA (7th ed.) Citation

United Nations. Economic Commission for Europe. (1983). Guide to national building regulations: Agreed format and example guide. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Economic Commission for Europe. Guide to National Building Regulations: Agreed Format and Example Guide. New York: United Nations, 1983.

MLA (9th ed.) Citation

United Nations. Economic Commission for Europe. Guide to National Building Regulations: Agreed Format and Example Guide. United Nations, 1983.