Columbia subject headings:
Counterrevolutions--Soviet Union--History--20th century.
Soviet Union--History--Revolution, 1917-1921--Protest movements.
Harvard subject headings:
Counterrevolutions--Soviet Union--History--20th century.
Soviet Union--History--Revolution, 1917-1921--Protest movements.
Princeton subject headings:
Counterrevolutions--Soviet Union--History--20th century.
Soviet Union--History--Revolution, 1917-1921--Protest movements.