The University of Kansas is a depository for United Nations documents.
KU receives most:
Printed Official Records of main organs of the United Nations, most sales publications regardless of place of issuance, the United Nations Treaty Series, all periodicals normally available by subscription, masthead documents (i.e., working documents) of the regional commission located in the area of the library, as well as all masthead documents and publications placed in general distribution, records of plenary meetings of the Security Council.
(United Nations http://www.un.org/Depts/dhl/deplib/aboutdeposit.htm Accessed 1/11/10)
These materials are available in the government information area at Anschutz Library -1 South and 1 North.