Farrell, D. M. (2001). Electoral systems: A comparative introduction. Palgrave.
Chicago Style (17. basım) AtıfFarrell, David M. Electoral Systems: A Comparative Introduction. Houndmills, Basingstoke, Hants, [Eng.]: Palgrave, 2001.
MLA (9th ed.) AtıfFarrell, David M. Electoral Systems: A Comparative Introduction. Palgrave, 2001.
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