Columbia subject headings:
Harvard subject headings:
Ėfron, Sergeĭ, 1893-1941
Journalists--Soviet Union--Biography
Revolutionaries--Soviet Union--Biography
Soviet Union--History--Revolution, 1917-1921--Personal narratives, Russian.
Soviet Union--History--Revolution, 1917-1921--Protest movements.
World War, 1914-1918--Russia
Princeton subject headings:
Ėfron, Sergeĭ, 1893-1941.
Journalists--Soviet Union--Biography.
Revolutionaries--Soviet Union--Biography.
Soviet Union--History--Revolution, 1917-1921--Personal narratives, Russian.
Soviet Union--History--Revolution, 1917-1921--Protest movements.
World War, 1914-1918--Russia.