R.A.Dufb and David Gurland. (1994). Reader on Punishment. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)R.A.Dufb and David Gurland. Reader on Punishment. Oxford: Oxford University Press, 1994.
Lua MLA (9ú heag.)R.A.Dufb and David Gurland. Reader on Punishment. Oxford University Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.