APA aipamena

Farrell, D. M. (2001). Electoral systems: A comparative introduction. Palgrave.

Chicago Style aipamena

Farrell, David M. Electoral Systems: A Comparative Introduction. New York: Palgrave, 2001.

MLA aipamena

Farrell, David M. Electoral Systems: A Comparative Introduction. Palgrave, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.