UNDEX (Indice de Documentos de las Naciones Unidas)

= UNDEX (United Nations Documents Index).

Nota: Antes conocida como UNDI: lista de todas las publicaciones de las diferentes agencias de las Naciones Unidas.

Ex. Until the early 1960s UNDEX (then known as UNDI -- United Nations Documents Index) was the principal source of bibliographic information about the publications of the various United Nations specialized agencies.