Columbia subject headings:
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti.
United States. Central Intelligence Agency.
Harvard subject headings:
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti.
United States. Central Intelligence Agency
Princeton subject headings:
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti
United States. Central Intelligence Agency