Political change in Britain: The evolution of electoral choice
British electoral facts 1885-1975
British political facts, 1900-1968,
British Political Parties: The Emergence of a Modern Party System
Governing Without a Majority: Dilemmas for Hung Parliaments in Britain
Butler's British Political Facts
Electoral dynamics in Britain since 1918
The Electoral System in Britain
British Political Facts
By-elections in British Politics. Edited by Chris Cook and John Ramsden
