Columbia subject headings:
Bakhmetev, B. A. (Boris Aleksandrovich)
Soviet Union--Relations--United States.
Ter-Asaturov, D. G. (Dmitrīĭ Georgīevich)
United States--Relations--Soviet Union.
Harvard subject headings:
Princeton subject headings:
Bakhmetev, B. A. (Boris Aleksandrovich)
Karpovich, Michael, 1888-1959.
United States--Foreign relations--Soviet Union.