Columbia subject headings:
Italy--History--1914-1945.
Italy--Kings and rulers--Biography.
Umberto II, King of Italy, 1904-1983.
Harvard subject headings:
Italy--History--1914-1945.
Italy--History--20th century.
Italy--Kings and rulers--Biography.
Savoy, House of.
Umberto II, King of Italy, 1904-1983
Princeton subject headings:
Italy--History--20th century.
Italy--Kings and rulers--Biography.
Umberto II, King of Italy, 1904-1983.