Dyfyniad APA

United Nations. Dept. of Social Affairs. (1950). Methods of social welfare administration. s.n.

Dyfyniad Arddull Chicago

United Nations. Dept. of Social Affairs. Methods of Social Welfare Administration. New York: s.n, 1950.

Dyfyniad MLA

United Nations. Dept. of Social Affairs. Methods of Social Welfare Administration. s.n, 1950.

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