Dunn, J. (1992). Democracy: The unfinished journey, 508 BC to AD 1993. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Dunn, John. Democracy: The Unfinished Journey, 508 BC to AD 1993. Oxford: Oxford University Press, 1992.
Lua MLA (9ú heag.)Dunn, John. Democracy: The Unfinished Journey, 508 BC to AD 1993. Oxford University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.