Columbia subject headings:
Belgium--History--German occupation, 1914-1918.
World War, 1914-1918--Confiscations and contributions--Germany.
Harvard subject headings:
Belgium--History--German occupation, 1914-1918.
World War, 1914-1918--Confiscations and contributions
World War, 1914-1918--Confiscations and contributions--Germany.
World War, 1914-1918--Economic aspects--Germany
Princeton subject headings:
Belgium--History--German occupation, 1914-1918.
World War, 1914-1918--Confiscations and contributions--Germany.