Columbia subject headings:
Industries--Germany--History.
Investments, German--Soviet Union--History.
Russia--Economic conditions--1861-1917.
Russia--Economic conditions--To 1861.
Harvard subject headings:
Industries--Germany--History
Investments, German--Soviet Union--History
Russia--Economic conditions--1861-1917.
Russia--Economic conditions--To 1861.
Princeton subject headings:
Industries--Germany--History.
Investments, German--Russia--History.
Russia--Economic conditions--1861-1917.
Russia--Economic conditions--To 1861.