Columbia subject headings:
France--History--German occupation, 1940-1945.
World War, 1939-1945--Underground movements--France.
Harvard subject headings:
France, Northern--Biography.
France--History--German occupation, 1940-1945.
Great Britain. Special Operations Executive
Guerrillas--France, Northern--Biography.
World War, 1939-1945--Underground movements--France, Northern.
Princeton subject headings:
France--History--German occupation, 1940-1945.
World War, 1939-1945--Underground movements--France.