Columbia subject headings:
Harvard subject headings:
Don Cossacks--History.
Don River Region (Russia)--History.
Russia. Armii︠a︡. Donskoe kazachʹe voĭsko--History.
Princeton subject headings:
Don Cossacks--History.
Don River Region (Russia)--History.
Russia. Armii︠a︡. Donskoe kazachʹe voĭsko--History.