Columbia subject headings:
Soviet Union--History--Revolution, 1917-1921.
Strikes and lockouts--Soviet Union--History--20th century.
Harvard subject headings:
Soviet Union--History--Revolution, 1917-1921.
Strikes and lockouts--Russia--History--20th century.
Strikes and lockouts--Soviet Union--History--20th century.
Princeton subject headings:
Soviet Union--History--Revolution, 1917-1921.
Strikes and lockouts--Soviet Union--History--20th century.