Title: Forty years after: Pius XI and the social order
First published: 1947
Subjects: Catholic Church, Catholic Church. Pope (1878-1903 : Leo XIII), Catholic Church. Pope (1922-1939 : Pius XI), Christianity, Church and labor, Church and social problems, Labor, Religious aspects, Religious aspects of Labor, Catholic Church. Pope, 1922-1939 (Pius XI) Quadragesimo anno (15 May 1931), Catholic Church. Pope, 1878-1903 (Leo XIII) Rerum novarum (15 May 1891)
LC classification: HD6338.C3 M54