APA (7th ed.) Citation

United Nations. (1964). Studie in long term eco. projections. U.N.

Chicago Style (17th ed.) Citation

United Nations. Studie in Long Term Eco. Projections. New York: U.N, 1964.

MLA (9th ed.) Citation

United Nations. Studie in Long Term Eco. Projections. U.N, 1964.