Kertzer, D. I. (2018). The pope who would be king: The exile of Pius IX and the emergence of modern Europe (First edition.). Random House.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kertzer, David I. The Pope Who Would Be King: The Exile of Pius IX and the Emergence of Modern Europe. First edition. New York: Random House, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Kertzer, David I. The Pope Who Would Be King: The Exile of Pius IX and the Emergence of Modern Europe. First edition. Random House, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.