Columbia subject headings:
Economic development--Europe--History--Congresses.
Economic history--Medieval, 500-1500--Congresses.
Europe--Economic conditions--To 1492--Congresses.
Harvard subject headings:
Economic development--Europe--History--Congresses.
Economic history--Medieval, 500-1500--Congresses.
Europe--Economic conditions--To 1492--Congresses.
Princeton subject headings:
Economic development--Europe--History--Congresses.
Economic history--Medieval, 500-1500--Congresses.
Europe--Economic conditions--To 1492--Congresses.