Note verbale dated 7 May 2014 from the Permanent Mission of Costa Rica to the United Nations addressed to the Preparatory Committee for the 2015 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons Treaty on the Non-Proliferation of Nuclear Weapons - Preparatory Committee for the Ninth Review Conference Third session (2014) Costa Rica Working papers 2014-04-27 NPT/CONF.2015/PC.III/WP.44 EN
