1. Adelman P (1995) The Liberal Party 1910–1931. Routledge, London
2. Ashdown P (2010) A fortunate life. The autobiography of Paddy Ashdown. Aurum Press, London
3. Barberis P (2015) Jo Grimond. In: Duncan B, Ingham R, Little T (Hrsg) British liberal leaders. Biteback, London, S 295–310
4. Bogdanor V (2017) The Liberal Party and the Liberal Democrats (Video). 13. Dezember. Gresham College. https://www.youtube.com/watch?v=44ir_D_hD-M. Zugegriffen: 18. November 2020
5. Bowers C (2012) Nick Clegg. The biography. Biteback, London