APA (7th ed.) Citation

United nations. (1990). The Institute and its activities 1990/91. UN.

Chicago Style (17th ed.) Citation

United nations. The Institute and Its Activities 1990/91. New York: UN, 1990.

MLA (8th ed.) Citation

United nations. The Institute and Its Activities 1990/91. UN, 1990.

Warning: These citations may not always be 100% accurate.