Columbia subject headings:
Soviet Union--History--Revolution, 1917-1921.
Soviet Union. Raboche-Krestʹi︠a︡nskai︠a︡ Krasnai︠a︡ Armii︠a︡--Political activity.
Harvard subject headings:
Saint Petersburg (Russia)--History--Revolution, 1917-1921.
Soldiers--Russia (Federation)--Saint Petersburg--Political activity.
Princeton subject headings:
Saint Petersburg (Russia)--History--Revolution, 1917-1921.
Soldiers--Russia (Federation)--Saint Petersburg--Political activity.