Columbia subject headings:
Intelligence service--United States.
Russia--Foreign relations--United States.
United States--Foreign relations--Russia.
United States. Central Intelligence Agency.
Harvard subject headings:
Intelligence service--United States.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
United States. Central Intelligence Agency
Princeton subject headings:
Intelligence service--United States.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
United States. Central Intelligence Agency