Columbia subject headings:
Catholic Church--Political activity--Italy--History--20th century--Sources.
Christian democratic parties--Italy--History--20th century--Sources.
Constitutional history--Italy--Sources.
Italy--Politics and government--20th century--Sources.
Harvard subject headings:
Catholic Church--Italy--Political activity--History--20th century--Sources.
Catholic Church--Political activity--Italy--History--20th century--Sources.
Christian democratic parties--Italy--History--20th century--Sources.
Constitutional history--Italy--Sources.
Italy--Politics and government--20th century--Sources.
Princeton subject headings:
Catholic Church--Italy--Political activity--History--20th century--Sources.
Christian democratic parties--Italy--History--20th century--Sources.
Constitutional history--Italy--Sources.
Italy--Politics and government--1922-1945--Sources.
Italy--Politics and government--1945-1976--Sources.
Italy. Costituzione