Columbia subject headings:
Civil rights--Russia (Federation)
Socialism--Russia.
Harvard subject headings:
Labor
Labor movement
Labor movement--History
May Day (Labor holiday)--History.
Russia--History--Alexander III, 1881-1894.
Russia--Social conditions.
Shelgunov, N. V. (Nikolaĭ Vasilʹevich), 1824-1891.
Soviet Union--Social conditions.
Working class
Princeton subject headings: