Rumberger, R. W. (2011). Dropping out: Why students drop out of high school and what can be done about it. Harvard University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rumberger, Russell W. Dropping Out: Why Students Drop Out of High School and What Can Be Done About It. Cambridge, Mass.: Harvard University Press, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Rumberger, Russell W. Dropping Out: Why Students Drop Out of High School and What Can Be Done About It. Harvard University Press, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.