Dyfyniad APA

United Nations. Statistical Office. (1950). Studies in methods (no. 1.). [s.n.].

Dyfyniad Arddull Chicago

United Nations. Statistical Office. Studies in Methods. no. 1. New York: [s.n.], 1950.

Dyfyniad MLA

United Nations. Statistical Office. Studies in Methods. no. 1. [s.n.], 1950.

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