United Nations Executive Board. (1972). Executive Board forty ninth session, Geneva, 18-27 January 1972. New York :: United Nations,.
United Nations Executive Board. Executive Board forty ninth session, Geneva, 18-27 January 1972. New York :: United Nations,, 1972
United Nations Executive Board. Executive Board forty ninth session, Geneva, 18-27 January 1972. New York :: United Nations,, 1972.