APA (7th ed.) Citation

United Nations. Advisory Committee for the Co-ordination of Information Systems. (1990). Directory of applications software of the United Nations system. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Advisory Committee for the Co-ordination of Information Systems. Directory of Applications Software of the United Nations System. New York: United Nations, 1990.

MLA (9th ed.) Citation

United Nations. Advisory Committee for the Co-ordination of Information Systems. Directory of Applications Software of the United Nations System. United Nations, 1990.