Columbia subject headings:
Ethnology--Russia (Federation)--Saint Petersburg--Statistics.
Saint Petersburg (Russia)--Population.
Harvard subject headings:
Minorities--Russia (Federation)--Saint Petersburg--History--19th century.
Saint Petersburg (Russia)--Population--History--19th century.
Social classes--Russia (Federation)--Saint Petersburg--History--19th century.
Princeton subject headings:
Minorities--Russia (Federation)--Saint Petersburg--History--19th century.
Saint Petersburg (Russia)--Population--History--19th century.
Social classes--Russia (Federation)--Saint Petersburg--History--19th century.