Columbia subject headings:
Harvard subject headings:
Anarchism--Europe, Western--History.
Anarchism--Soviet Union--History.
Russia--History--February Revolution, 1917.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Anarchism--Europe, Western--History.
Anarchism--Soviet Union--History.
Russia--History--February Revolution, 1917.
Soviet Union--History--Revolution, 1917-1921.