The Berkeley Library has created a sound resource collection about BREXIT.
An excerpt for your review...
"Developments surrounding the "Brexit" or vote on the Referendum of the United Kingdom's Membership of the European Union are evolving. At present most research has been published by think tanks and governments. Some coverage can be also be found in academic journals from the UK such as International Affairs and Political Quarterly.
The European Documentation Centre at Cardiff University has excellent guides to the Brexit Debate as well as several other published Brexit Information guides. The British Library also has a EU Referendum Information Guide."