Columbia subject headings:
Catholics--Italy--History--20th century.
Christianity and politics--Catholic Church--History--20th century.
Church and social problems--Italy--History--20th century.
Economics--Religious aspects--Catholic Church--History--20th century.
Harvard subject headings:
Catholic action--Italy.
Catholics--Italy--History--20th century.
Catholics--Political activity--Italy
Christian democracy--Italy.
Christianity and politics--Catholic Church--History--20th century
Church and social problems--Catholic Church--Italy.
Church and social problems--Italy--History--20th century.
Economics--Religious aspects--Catholic Church--History--20th century.
Princeton subject headings:
Catholics--Italy--History--20th century.
Christianity and politics--Catholic Church--History--20th century.
Church and social problems--Italy--History--20th century.
Economics--Religious aspects--Catholic Church--History--20th century.