Columbia subject headings:
Civilization, Ancient--Economic aspects--Congresses.
Rome--Economic aspects--Congresses.
Rome--Economic policy--Congresses.
Harvard subject headings:
Commerce--Rome.
Economic history--To 500
Fairs--Rome--History--Congresses.
Markets--Rome--History--Congresses.
Markets--Rome--History.
Mediterranean Region--Economic aspects--Congresses.
Rome--Commerce--History--Congresses.
Rome--Commerce--History.
Princeton subject headings:
Fairs--Rome--History--Congresses.
Markets--Rome--History--Congresses.
Rome--Commerce--History--Congresses.