Before you start your research, you might wish to consult the UNBIS Thesaurus to look up subject headings and terminology.
The most useful tool below will depend on how you are performing your search - click here for more info. (FAQ of UN's Dag Hammaskjöld Library)
Basic Facts about the United Nations [Electronic book]
Yearbook of the United Nations [Print and Electronic]
Concise Encyclopedia of the United Nations [Electronic book]
Oxford Handbook of the United Nations [Electronic book]
Historical Dictionary of the United Nations [Electronic book]
Encyclopedia of the United Nations and International Agreements Call number: MRT Ref KZ 4968 .O8413 2003
Les Nations Unies aujourd'hui Call number: GSG Ref JZ 4984.5 .N365 2008
Historical Dictionary of Multinational Peacekeeping [Electronic book]
If the official documents that you need are not available in electronic format, please check the print collection on the 3rd floor of the Morisset library (Call number: UN2...) or the Mircroform collection (1946-1970) via AccessUN database.
To learn more about document symbols and the classification of UN official documents, please consult the UN Research Guide.