Columbia subject headings:
Harvard subject headings:
Historians--Soviet Union--Biography
Solovʹev, S. M. (Sergeĭ Mikhaĭlovich), 1820-1879
Soviet Union--History.
Princeton subject headings:
Historians--Russia--Biography.
Russia--History.
Solovʹev, S. M. (Sergeĭ Mikhaĭlovich), 1820-1879.