Columbia subject headings:
Italy--History--German occupation, 1943-1945.
World War, 1939-1945--Secret service--Great Britain.
World War, 1939-1945--Underground movements--Italy.
Harvard subject headings:
Italy--History--German occupation, 1943-1945.
World War, 1939-1945--Secret service--Great Britain.
World War, 1939-1945--Underground movements--Italy.
Princeton subject headings:
World War, 1939-1945--Underground movements--Italy.