APA (7 वां संस्करण) प्रशस्ति पत्र
Barker, V. (2009). The politics of imprisonment: How the democratic process shapes the way America punishes offenders. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Barker, Vanessa. The Politics of Imprisonment: How the Democratic Process Shapes the Way America Punishes Offenders. Oxford ; New York: Oxford University Press, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Barker, Vanessa. The Politics of Imprisonment: How the Democratic Process Shapes the Way America Punishes Offenders. Oxford University Press, 2009.
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