Columbia subject headings:
Architecture--Russia (Federation)--Kaluga (Kaluzhskai︠a︡ oblastʹ)
Kaluga (Kaluzhskai︠a︡ oblastʹ, Russia)--Buildings, structures, etc.
Kaluga (Kaluzhskai︠a︡ oblastʹ, Russia)--Guidebooks.
Harvard subject headings:
Kaluga (Kaluzhskai︠a︡ oblastʹ, Russia)--History.
Princeton subject headings: