Columbia subject headings:
Harvard subject headings:
Public opinion--Germany
World War, 1914-1918--Atrocities--Public opinion.
World War, 1914-1918--Belgium--Public opinion.
Princeton subject headings:
Belgium--History--German occupation, 1914-1918.
World War, 1914-1918--Atrocities--Belgium.
World War, 1914-1918--Germany--Public opinion.