United Nations. Dept. of Social Affairs. (1949). Housing and town and country planning organization. s.n.
Chicago-Zitierstil (17. Ausg.)United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. Lake Success: s.n, 1949.
MLA-Zitierstil (9. Ausg.)United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. s.n, 1949.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.