Columbia subject headings:
Belgium--Emigration and immigration--History--20th century.
Belgium--Politics and government--1914-1951.
Fascism--Belgium--History--20th century.
Immigrants--Belgium--History--20th century.
Italians--Belgium--History--20th century.
Italy--Emigration and immigration--History--20th century.
Harvard subject headings:
Belgium--Emigration and immigration--History--20th century.
Belgium--Politics and government--1914-1951.
Fascism--Belgium--History--20th century.
Immigrants--Belgium--History--20th century.
Italians--Belgium--History--20th century.
Italy--Emigration and immigration--History--20th century.
Princeton subject headings:
Belgium--Politics and government--1914-1951.
Immigrants--Belgium--Political activity.
Italians--Belgium--Political activity.