Two are the main platforms containing United Nations documents and publications:
ODS, the Official Documents System, was introduced before the Digital Library, in 1993, it is an official documents repository containing digital-born documents or published after 1993, and it is managed by the UN Internal Office for Information Technology and communications.
https://documents.un.org/prod/ods.nsf/home.xsp
The United Nations Digital Library launched in 2017
In the past Parliamentary documents were sent by the UNOG Division of Conference Management to depository libraries.
In 2019, one of the most ancient call numbers in our Library I-3-I-111 [...], was retrieved and re-catalogued, the call number hosts official documents published by the League of Nations.