Katz, R. S. (1997). Democracy and elections. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Katz, Richard S. Democracy and Elections. New York: Oxford University Press, 1997.
Lua MLA (9ú heag.)Katz, Richard S. Democracy and Elections. Oxford University Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.