Abramowitz, A. (2010). The disappearing center: Engaged citizens, polarization, and American democracy. Yale University Press.
Chicago Style (17th ed.) ZitazioaAbramowitz, Alan. The Disappearing Center: Engaged Citizens, Polarization, and American Democracy. New Haven: Yale University Press, 2010.
MLA (9th ed.) ZitazioaAbramowitz, Alan. The Disappearing Center: Engaged Citizens, Polarization, and American Democracy. Yale University Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.