Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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