Snicket, L., & Seth. (2014). "Who could that be at this hour?" (First paperback edition.). Little, Brown and Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Snicket, Lemony, و Seth. "Who Could That Be at This Hour?". First paperback edition. New York: Little, Brown and Company, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Snicket, Lemony, و Seth. "Who Could That Be at This Hour?". First paperback edition. Little, Brown and Company, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.