United Nations Treaty PublicationsHein Online's UN Treaty Publications database which includes, among others, the United Nations Treaty Series (UNTS) and the League of Nations Treaty Series (LNTS). It also includes the Multilateral Treaties Deposited with the Secretary-General which gives you the status of those treaties as of 2009.
The UN Treaty Series in print is at call number KZ170.5 T74
The League of Nations Treaty Series in print is at call number KZ170.5 T74