Columbia subject headings:
Harvard subject headings:
World War, 1939-1945--Prisoners and prisons, German.
World War, 1939-1945--Underground movements--France.
Princeton subject headings:
France--History--German occupation, 1940-1945.
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Prisoners and prisons.
World War, 1939-1945--Underground movements--France.