APA (7th ed.) Citation

United nations. (1991). The least developed countries 1990 report. UN.

Chicago Style (17th ed.) Citation

United nations. The Least Developed Countries 1990 Report. New York: UN, 1991.

MLA (8th ed.) Citation

United nations. The Least Developed Countries 1990 Report. UN, 1991.

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