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