Columbia subject headings:
Poland--History--Occupation, 1939-1945.
Prisoners of war--Pomerania (Poland and Germany)--History--20th century.
World War, 1939-1945--Prisoners and prisons, German.
Harvard subject headings:
World War, 1939-1945--Atrocities--Pomerania (Poland and Germany)
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Pomerania (Poland and Germany)
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings: