Columbia subject headings:
Russia--History--Nicholas II, 1894-1917--Congresses.
World War, 1914-1918--Influence--Congresses.
World War, 1914-1918--Russia--Congresses.
Harvard subject headings:
Princeton subject headings:
Russia--History--Nicholas II, 1894-1917--Congresses.
World War, 1914-1918--Influence--Congresses.
World War, 1914-1918--Russia--Congresses.