United Nations. Dept. of Social Affairs. (1949). Housing and town and country planning organization. s.n.
Chicago-referens (17:e uppl.)United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. Lake Success: s.n, 1949.
MLA-referens (9:e uppl.)United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. s.n, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.