Cooley, E. J. (1927). Probation and delinquency: The study and treatment of the individual delinquent. Catholic Charities of the Archdiocese of New York.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cooley, Edwin J. Probation and Delinquency: The Study and Treatment of the Individual Delinquent. New York: Catholic Charities of the Archdiocese of New York, 1927.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cooley, Edwin J. Probation and Delinquency: The Study and Treatment of the Individual Delinquent. Catholic Charities of the Archdiocese of New York, 1927.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.