Europa Geschichte Katholische Kirche Arbeiterbewegung Katholizismus BUSINESS & ECONOMICS / Labor Briefsammlung Catholic Church Doctrines History 19th century Catholic Church Doctrines History 20th century Christliche Arbeiterbewegung Church and social problems Catholic Church History Church and social problems Europe History 19th century Church and social problems Europe History 20th century Heiler, Friedrich 1892-1967 Hügel, Friedrich von 1852-1925 Labor Labor / Religious aspects / Catholic Church Labor Religious aspects Catholic Church Labor Europe History 20th century Labor movement Religious aspects Christianity Labor movement Europe History 20th century Labor movement Labor movement / Religious aspects / Christianity POLITICAL SCIENCE / Labor & Industrial Relations Sozialkatholizismus Söderblom, Nathan 1866-1931 Belgien Catholic Church Christelijke ethiek Christentum Christian sociology Catholic Church Europe History of doctrines 19th century Christian sociology Catholic Church Europe History of doctrines 20th century Christian sociology Catholic Church History 19th century