http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Seminar on Urbanization Problems in Latin America (1959 : Santiago, Chile)
"Jointly sponsored by the Bureau of Social Affairs of the United Nations, and Economic Commission for Latin America, and Unesco in co-operation with the International Labour Organisation and the Organization of American States".