Columbia subject headings:
Correctional institutions--Poland--Kraków.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Prisoners and prisons, German.
Harvard subject headings:
Princeton subject headings:
Kraków (Poland)--Prisons and reformatories.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Prisoners and prisons, German.