Here are a few relevant resources for you:
Bobst Library has participated in the Federal Depository Library Program as a selective depository since 1967. Bobst is also a full depository library for UN documents since 1949. The documents in these collections are located in the west wing of the 6th floor.
The majority of tangible depository materials published after 1976 and received at the Government Documents Center are represented in BobCat, the library's online catalog. Federal documents can also be located by searching the Catalog of U.S. Government Publications, or the GPO's Federal Digital System (FDsys).
This is a list of a few of the UN agencies and programs relevant to the study of International Relations. To see a full list of UN programs and committees click here.