Columbia subject headings:
Harvard subject headings:
Bertoni, Giovanni, 1906-1964.
Intelligence officers--Italy--Biography.
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti.
Princeton subject headings:
Bertoni, Giovanni, 1906-1964.
Intelligence officers--Italy--Biography.
Soviet Union. Komitet gosudarstvennoæi bezopasnosti.