Catholic Church. Pope (1878-1903 : Leo XIII). (1891). Encyclical letter of our Holy Father by divine providence, Pope Leo XIII, on the condition of labor. International Catholic Truth Society.
Chicago Style (17th ed.) CitationCatholic Church. Pope (1878-1903 : Leo XIII). Encyclical Letter of Our Holy Father by Divine Providence, Pope Leo XIII, on the Condition of Labor. New York: International Catholic Truth Society, 1891.
MLA (9th ed.) CitationCatholic Church. Pope (1878-1903 : Leo XIII). Encyclical Letter of Our Holy Father by Divine Providence, Pope Leo XIII, on the Condition of Labor. International Catholic Truth Society, 1891.
Warning: These citations may not always be 100% accurate.