Catholic Church. Pope (1878-1903 : Leo XIII). (1978). Humanum genus: Encyclical letter of His Holiness Pope Leo XIII on Freemasonry, April 20, 1884. Tan Books and Publishers, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catholic Church. Pope (1878-1903 : Leo XIII). Humanum Genus: Encyclical Letter of His Holiness Pope Leo XIII on Freemasonry, April 20, 1884. Rockford, Illinois: Tan Books and Publishers, Inc., 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catholic Church. Pope (1878-1903 : Leo XIII). Humanum Genus: Encyclical Letter of His Holiness Pope Leo XIII on Freemasonry, April 20, 1884. Tan Books and Publishers, Inc., 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.