Columbia subject headings:
Harvard subject headings:
Clark, Christopher, 1953-
Germany--History--20th century.
World War, 1914-1918--Atrocities
World War, 1914-1918--Causes
World War, 1914-1918--Germany.
Princeton subject headings:
Clark, Christopher, 1953-
Germany--History--20th century.
World War, 1914-1918--Atrocities.
World War, 1914-1918--Causes.
World War, 1914-1918--Germany.