Ian Budge. (2001). Mapping policy preferences: Estimates for parties, electors, and governments, 1945-1998. Oxford ; New York: Oxford University Press.
Trích dẫn kiểu ChicagoIan Budge. Mapping Policy Preferences: Estimates for Parties, Electors, and Governments, 1945-1998. Oxford ; New York: Oxford University Press, 2001.
Deismireacht MLAIan Budge. Mapping Policy Preferences: Estimates for Parties, Electors, and Governments, 1945-1998. Oxford ; New York: Oxford University Press, 2001.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.