1. Partisan bias in British general elections;Blau;British Elections and Parties Review,2001
2. Blau, A., 2002. Seats–votes Relationships in British General Elections, 1955–1997. University of Oxford, DPhil thesis.
3. The People and the Party System: the Referendum and Electoral Reform in British Politics;Bogdanor,1981
4. Butler, D., 1950. Electoral facts. The Economist, 7 January, 5–7.
5. Appendix III: analysis of the results;Butler,1950