Columbia subject headings:
Soviet Union--Economic conditions.
Soviet Union--Historiography.
Soviet Union--Social conditions.
Harvard subject headings:
Soviet Union--Economic conditions
Soviet Union--Economic conditions--1917-1945
Soviet Union--Historiography
Soviet Union--Social conditions
Soviet Union--Social conditions--1917-1945
Princeton subject headings:
Labor productivity--Soviet Union--History.
Soviet Union--Economic policy--20th century.