Columbia subject headings:
Harvard subject headings:
Italy--History--1789-1815--Congresses.
Modena (Italy : Province)--History--Congresses.
Reggio Emilia (Italy : Province)--History--Congresses.
Princeton subject headings:
Italy--History--1789-1815--Congresses.
Modena (Italy : Province)--History--Congresses.
Reggio Emilia (Italy : Province)--History--Congresses.