Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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