Columbia subject headings:
Harvard subject headings:
Documentary photography--Russia--Catalogs.
Russia--History--Nicholas II, 1894-1917--Chronology--Pictorial works.
Russia--Social conditions--1801-1917--Pictorial works.
Princeton subject headings:
Documentary photography--Russia.
Russia--History--Nicholas II, 1894-1917--Pictorial works.
Russia--Social conditions--1801-1917--Pictorial works.