Columbia subject headings:
Italy--History--1922-1945.
Italy--Politics and government--1943-1947.
Monarchy--Italy--History--20th century.
Referendum--Italy--History--20th century.
Harvard subject headings:
Italy--History--1922-1945.
Italy--Politics and government--1943-1947.
Monarchy--Italy--History--20th century.
Referendum--Italy--History--20th century.
Princeton subject headings:
Italy--History--1922-1945.
Italy--Politics and government--1943-1947.
Monarchy--Italy--History--20th century.
Referendum--Italy--History--20th century.