Dyfyniad APA

United Nations. Dept. of Social Affairs. (1949). Housing and town and country planning organization. s.n.

Dyfyniad Arddull Chicago

United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. Lake Success: s.n, 1949.

Dyfyniad MLA

United Nations. Dept. of Social Affairs. Housing and Town and Country Planning Organization. s.n, 1949.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.