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UK Data Service
The UK's largest collection of UK and international social, economic and population data, UK Data Service is funded by the Economic and Social Research Council (ESRC).  Collections include major UK government-sponsored surveys, cross-national surveys, longitudinal studies, UK census data, international aggregate, business data and qualitative data.


UK Parliamentary Papers
Collection of official parliamentary papers from the House of Commons (1717 to 2015), House of Lords (1714 to 1805) and Hansard debates (1803-2005); including command papers, bills, debates, committee reports, commissioner reports, account and other parliamentary papers. [Excludes House of Lords and Public Petitions to Parliament].


United Nations Treaty Collection
Complete collection of multilateral treaties and conventions as deposited at the League of Nations and United Nations, including full-text treaties and guide to status. [free resource]