Columbia subject headings:
Catholic Church--Italy--History--20th century--Sources.
Catholic Church--Italy--History--20th century.
Church and state--Italy--History--20th century--Sources.
Church and state--Italy--History--20th century.
Fascism and the Catholic Church--History--20th century--Sources.
Fascism and the Catholic Church--History--20th century.
Italy--Politics and government--1914-1945--Sources.
Italy--Politics and government--1914-1945.
Harvard subject headings:
Catholic Church--Italy--History--20th century--Sources.
Catholic Church--Italy--History--20th century.
Church and state--Italy--History--20th century
Church and state--Italy--History--20th century--Sources.
Fascism and the Catholic Church--History--20th century--Sources.
Fascism and the Catholic Church--History--20th century.
Italy--Politics and government--1914-1945--Sources.
Italy--Politics and government--1914-1945.
Princeton subject headings:
Catholic Church--Italy--History--20th century--Sources.
Catholic Church--Italy--History--20th century.
Church and state--Italy--History--20th century--Sources.
Church and state--Italy--History--20th century.
Fascism and the Catholic Church--History--20th century--Sources.
Fascism and the Catholic Church--History--20th century.
Italy--Politics and government--1914-1945--Sources.
Italy--Politics and government--1914-1945.