Columbia subject headings:
Communism--Soviet Union.
Industrial policy--Soviet Union.
Socialism--Russia.
Socialism--Soviet Union.
Soviet Union--Economic policy--1928-1932.
Working class--Soviet Union.
Harvard subject headings:
Communism--Soviet Union
Industrial policy--Soviet Union
Labor--Soviet Union
Socialism--Soviet Union
Soviet Union--Economic policy--1928-1932.
Working class--Soviet Union
Princeton subject headings:
Communism--Soviet Union.
Industrial policy--Soviet Union.
Labor--Soviet Union.
Socialism--Russia.
Soviet Union--Economic policy--Five-year plan (1928-1932)