http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Boletin del UNISIST - Programa General de Informacion
Programa General de Informacion - Boletin del UNISIST
United Nations Educational, Scientific and Cultural Organization [UNESCO]
Bibliografia, documentacion, terminologia, UNESCO=780 00