Columbia subject headings:
Harvard subject headings:
Authors, Italian--20th century--Biography
Italy--History--German occupation, 1943-1945.
Political refugees--Switzerland--Biography.
Silone, Ignazio, 1900-1978--Biography--Imprisonment--Switzerland--Zurich.
Socialists--Italy--Biography
World War, 1939-1945--Underground movements--Italy.
Princeton subject headings:
Authors, Italian--20th century--Biography.
Italy--History--German occupation, 1943-1945.
Political refugees--Switzerland--Biography.
Silone, Ignazio, 1900---Biography--Imprisonment--Switzerland--Zurich.
Socialists--Italy--Biography.
World War, 1939-1945--Underground movements--Italy.