Columbia subject headings:
Harvard subject headings:
Belgium--Foreign relations--1914-1951.
Paris Peace Conference (1919-1920)
World War, 1914-1918--Belgium
World War, 1914-1918--Peace
Princeton subject headings:
Belgium--Foreign relations--1914-1951.
Paris Peace Conference (1919-1920)
World War, 1914-1918--Belgium.
World War, 1914-1918--Peace.