Columbia subject headings:
Harvard subject headings:
Germany. Bundesnachrichtendienst.
Intelligence service--Germany.
Intelligence service--United States.
Internal security--Germany
Internal security--United States
Political crimes and offenses--Germany
United States. Central Intelligence Agency
Princeton subject headings:
Germany. Bundesnachtrichtendienst.
Intelligence service--Germany.
Intelligence service--United States.
Internal security--Germany.
Internal security--United States.
Political crimes and offenses--Germany.
United States. Central Intelligence Agency