APA-referens (7:e uppl.)

Barker, V. (2009). The politics of imprisonment: How the democratic process shapes the way America punishes offenders. Oxford University Press.

Chicago-referens (17:e uppl.)

Barker, Vanessa. The Politics of Imprisonment: How the Democratic Process Shapes the Way America Punishes Offenders. Oxford ; New York: Oxford University Press, 2009.

MLA-referens (9:e uppl.)

Barker, Vanessa. The Politics of Imprisonment: How the Democratic Process Shapes the Way America Punishes Offenders. Oxford University Press, 2009.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.