Columbia subject headings:
Soviet Union--Economic conditions.
Soviet Union--Foreign influences.
Soviet Union--History.
Harvard subject headings:
Amburger, Erik, 1907-2001
Germany--Relations--Soviet Union.
Soviet Union--History.
Soviet Union--Relations--Germany.
Princeton subject headings:
Germans--Soviet Union--History.
Industries--Soviet Union--History.
Manufacturing industries--Soviet Union--History.
Soviet Union--Commerce--History.
Soviet Union--Economic conditions.