United Nations. Dept. of Social Affairs. (1949). Housing and town and country planning organization. s.n.
Chicago Style (17th ed.) CitationUnited Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. Lake Success: s.n, 1949.
MLA引文United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. s.n, 1949.
警告：這些引文格式不一定是100％准確.