Columbia subject headings:
Rostov (Russia)--Civilization--Periodicals.
Rostov (Russia)--History--Periodicals.
Harvard subject headings:
Rostov (Russia)--Civilization--Congresses.
Rostov (Russia)--History--Congresses.
Princeton subject headings:
Rostov (Russia)--Civilization--Congresses.
Rostov (Russia)--History--Congresses.