A new compilation of resources from the UK House of Commons Library.
From the page:
The Commons Library produces briefing papers which set out the background and stages of the UK’s referendum for remaining in or leaving the European Union.
[The] page highlights the analysis and comment on the in-out referendum and presents an impartial view of the different arguments and opinions. It offers information on potential “Brexit” and on remaining in the EU.
Direct to the Complete Resource Compilation