1969 United Nations Building, Chile
1969 United Nations Intl Commission
1969 Intl Labor Oranization, 50th Anniv.
1968 Intl Human Rights Year
1969 13c Definitive
1968 6c Definitive
1968 World Weather Watch
1970 Peace, Justice and Progress
1969 Tunisian Mosaics
U.N.I.T.A.R. trains personnel, particularly from developing countries, for service with national administrations or with the United Nations itself. It also carries out operational research into problems of concern to the United Nations.