APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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