Columbia subject headings:
Harvard subject headings:
Belgium--History--German occupation, 1940-1945.
Léopold III, King of the Belgians, 1901---Public opinion.
World War, 1939-1945--Belgium--Public opinion.
Princeton subject headings:
Belgium--History--German occupation, 1940-1945.
Léopold III, King of the Belgians, 1901---Public opinion.
World War, 1939-1945--Belgium--Public opinion.