Columbia subject headings:
Harvard subject headings:
Vi︠a︡tskiĭ kraĭ (Kirovskai︠a︡ oblastʹ, Russia)--History--20th century.
Vi︠a︡tskiĭ kraĭ (Kirovskai︠a︡ oblastʹ, Russia)--History--20th century.
Princeton subject headings:
Vi︠a︡tskiĭ kraĭ (Kirovskai︠a︡ oblastʹ, Russia)--History--20th century.