New British political system & Budge, I. (1988). The changing British political system: Into the 1990s / Ian Budge...[et al] (2nd ed.).
Chicago-referens (17:e uppl.)New British political system och Ian Budge. The Changing British Political System: Into the 1990s / Ian Budge...[et Al]. 2nd ed. Longman, 1988.
MLA-referens (9:e uppl.)New British political system och Ian Budge. The Changing British Political System: Into the 1990s / Ian Budge...[et Al]. 2nd ed. 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.