Catholic Church. Pope. (1891). Encyclical letter of our Holy Father by divine providence Pope Leo XIII on the condition of labor. Official translation. Baltimore : John Murphy & Co..
Chicago-Zitierstil (17. Ausg.)Catholic Church. Pope. Encyclical Letter of Our Holy Father by Divine Providence Pope Leo XIII on the Condition of Labor. Official Translation. Baltimore : John Murphy & Co., 1891.
MLA-Zitierstil (8. Ausg.)Catholic Church. Pope. Encyclical Letter of Our Holy Father by Divine Providence Pope Leo XIII on the Condition of Labor. Official Translation. Baltimore : John Murphy & Co., 1891.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.