| nombre | tipo de medio | fecha | Autor | Idioma | tipo | Ubicación narrativa | Título |
|---|---|---|---|---|---|---|---|
| The Age of Affluence, 1951-1964 | 1951 | Vernon Bogdanor | |||||
| Democracy and Elections: Electoral Systems and Their Political Consequences | Vernon Bogdanor | ||||||
| Multi-Party Politics and the Constitution | 1983 | Vernon Bogdanor | |||||
| What is Proportional Representation? | 1984 | Vernon Bogdanor | |||||
| The Blackwell Encyclopedia of Political Institutions | 1987 | Vernon Bogdanor |