Columbia subject headings:
Catholic Church--Italy--History--20th century.
Fascism and the Catholic Church--Italy.
Italy--Politics and government--1943-1947.
Harvard subject headings:
Catholic Church--Italy--History--20th century.
Church and state--Italy--History--20th century
Italy--Church history--20th century.
Princeton subject headings:
Catholic Church--Italy--History--20th century.
Catholic Church. Pope (1939-1958 : Pius XII)
Church and state--Catholic Church--History--20th century.
Church and state--Italy--History--20th century.
Italy--Politics and government--1943-1947.
Italy--Politics and government--1945-1976.