Leo XIII, P. C. C. P. (1884). On the Sect of Free Masons, Encyclical Letter of Our Holy Father by Divine Providence Pope Leo the Thirteenth. Philadelphia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Leo XIII, Pope; Catholic Church. Pope. On the Sect of Free Masons, Encyclical Letter of Our Holy Father by Divine Providence Pope Leo the Thirteenth. Philadelphia, 1884.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Leo XIII, Pope; Catholic Church. Pope. On the Sect of Free Masons, Encyclical Letter of Our Holy Father by Divine Providence Pope Leo the Thirteenth. Philadelphia, 1884.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.