Columbia subject headings:
Arts--Soviet Union.
Cooperative societies--Soviet Union--Directories.
Corporations--Soviet Union--Directories.
Education--Soviet Union.
Industries--Soviet Union.
Soviet Union--Commerce.
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Intellectual life.
Harvard subject headings:
Industries--Soviet Union
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Intellectual life.
Princeton subject headings: