Columbia subject headings:
Fascism--Italy--History--20th century.
Italy. Servizio informazioni difesa.
World War, 1939-1945--Secret service--Italy.
Harvard subject headings:
Fascism--Italy--History--20th century
Italy. Servizio informazioni difesa.
World War, 1939-1945--Secret service--Italy.
Princeton subject headings:
Fascism--Italy--History--20th century.
Italy. Servizio informazioni difesa
World War, 1939-1945--Secret service--Italy.