Cita APA

United Nations. (1968). Yearbook of the United Nations 1968. New York: Office of Public Information.

Chicago Style Citation

United Nations. Yearbook of the United Nations 1968. New York: Office of Public Information, 1968.

Cita MLA

United Nations. Yearbook of the United Nations 1968. New York: Office of Public Information, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.