APA (7th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. (2004). The impact of aids. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. The Impact of Aids. New York: United Nations, 2004.

MLA (9th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. The Impact of Aids. United Nations, 2004.