Cita APA (7a ed.)

United Nations. (1993). Statistical Yearbook, 1990/91 (38th edition.). [editor no identificado].

Cita Chicago Style (17a ed.)

United Nations. Statistical Yearbook, 1990/91. 38th edition. New York: [editor no identificado], 1993.

Cita MLA (8a ed.)

United Nations. Statistical Yearbook, 1990/91. 38th edition. [editor no identificado], 1993.