Butler, D., & Westlake, M. (2000). British politics and European elections 1999. Macmillan ; St. Martin's Press.
Chicago Style aipamenaButler, David, and Martin Westlake. British Politics and European Elections 1999. Houndmills, Basingstoke, Hampshire : New York: Macmillan ; St. Martin's Press, 2000.
MLA aipamenaButler, David, and Martin Westlake. British Politics and European Elections 1999. Macmillan ; St. Martin's Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.