Columbia subject headings:
Russia--History--Catherine II, 1762-1796--Sources.
Russia--History--Revolution, 1905-1907--Sources.
Russia--Social conditions--1801-1917--Sources.
Harvard subject headings:
Russia--History--Catherine II, 1762-1796--Sources.
Russia--History--Revolution, 1905-1907--Sources.
Russia--Social conditions--1801-1917--Sources.
Princeton subject headings:
Russia--History--Catherine II, 1762-1796--Sources.
Russia--History--Revolution, 1905-1907--Sources.
Russia--Social conditions--1801-1917--Sources.