United Nations. (1971). The feasibility of establishing a world population institute: Report of a United Nations/UNESCO/WHO mission. [s.n.].
Cita Chicago (17th ed.)United Nations. The Feasibility of Establishing a World Population Institute: Report of a United Nations/UNESCO/WHO Mission. New York: [s.n.], 1971.
Cita MLA (9th ed.)United Nations. The Feasibility of Establishing a World Population Institute: Report of a United Nations/UNESCO/WHO Mission. [s.n.], 1971.
Atenció: Aquestes cites poden no estar 100% correctes.