Columbia subject headings:
Catholic Church--Italy--History--20th century.
Italy--Church history--20th century.
Pius X, Pope, 1835-1914.
Harvard subject headings:
Catholic Church--History--20th century.
Catholic Church--Italy--History--20th century.
Church renewal--Catholic Church--History--20th century.
Italy--Church history--20th century.
Pius X, Pope, 1835-1914.
Princeton subject headings:
Catholic Church--Italy--Clergy--History--20th century.
Catholic theological seminaries--Italy--History--20th century.
Church and the world.
Church renewal--Catholic Church--History--20th century.
Church renewal--Italy--History--20th century.
Italy--Church history--20th century.
Visitations, Ecclesiastical--Italy--History--20th century.