Columbia subject headings:
Harvard subject headings:
Espionage--Italy--History--20th century.
Sabotage--Italy--History--20th century.
World War, 1939-1945--Campaigns--Italy.
World War, 1939-1945--Secret service--Germany.
World War, 1939-1945--Secret service--Great Britain.
World War, 1939-1945--Underground movements--Italy.
Princeton subject headings:
Espionage--Italy--History--20th century.
Sabotage--Italy--History--20th century.
World War, 1939-1945--Campaigns--Italy.
World War, 1939-1945--Secret service--Germany.
World War, 1939-1945--Secret service--Great Britain.
World War, 1939-1945--Underground movements--Italy.