Columbia subject headings:
Poland--History--German occupation, 1914-1918.
World War, 1914-1918--Personal narratives, Polish.
Harvard subject headings:
Poland--History--German occupation, 1914-1918
World War, 1914-1918--Poland
Princeton subject headings:
Poland--History--German occupation, 1914-1918--Personal narratives, Polish.
World War, 1914-1918--Poland--Personal narratives, Polish.