Columbia subject headings:
Harvard subject headings:
Russia--History--1237-1480.
Tverskoe kni︠a︡zhestvo--History, Military.
Tverʹ (Russia)--History.
Princeton subject headings:
Russia--History--1237-1480.
Tverskoe kni︠a︡zhestvo--History, Military.
Tverʹ (Russia)--History.