Frost, N. (2006). The punitive state: Crime, punishment, and imprisonment across the United States. LFB Scholarly Pub..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Frost, Natasha. The Punitive State: Crime, Punishment, and Imprisonment Across the United States. New York: LFB Scholarly Pub., 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Frost, Natasha. The Punitive State: Crime, Punishment, and Imprisonment Across the United States. LFB Scholarly Pub., 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.