Columbia subject headings:
Harvard subject headings:
Danske hjælpekorps.
Prisoners of war--Germany
Prisoners of war--Scandinavia.
World War, 1939-1945--Prisoners and prisons, German.
World War, 1939-1945--Underground movements--Denmark.
Princeton subject headings:
Danske hjælpekorps.
Prisoners of war--Germany.
Prisoners of war--Scandinavia.
World War, 1939-1945--Prisoners and prisons, German.
World War, 1939-1945--Underground movements--Denmark.