Cita APA (7a ed.)

United Nations. Economic Commission for Europe. (1983). Catalogue of building systems and components approved at the national level and aimed at international trade: Agreed format and example catalogue. United Nations.

Cita Chicago Style (17a ed.)

United Nations. Economic Commission for Europe. Catalogue of Building Systems and Components Approved at the National Level and Aimed at International Trade: Agreed Format and Example Catalogue. New York: United Nations, 1983.

Cita MLA (8a ed.)

United Nations. Economic Commission for Europe. Catalogue of Building Systems and Components Approved at the National Level and Aimed at International Trade: Agreed Format and Example Catalogue. United Nations, 1983.