Columbia subject headings:
Harvard subject headings:
I︠A︡roslavskai︠a︡ oblastʹ (Russia)--History--Sources.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--Russia (Federation)--I︠A︡roslavskai︠a︡ oblastʹ--History--Sources.
Princeton subject headings:
I︠A︡roslavskai︠a︡ oblastʹ (Russia)--History--Sources.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--Russia (Federation)--I︠A︡roslavskai︠a︡ oblastʹ--History--Sources.