Columbia subject headings:
Russia--Economic conditions.
Russia--Statistics.
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Economic conditions.
Soviet Union--Statistics.
Harvard subject headings:
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Economic conditions.
Soviet Union--Statistics
Princeton subject headings:
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Economic conditions.
Soviet Union--Statistics.
Statistics.