Columbia subject headings:
Harvard subject headings:
Business--Europe, Central--History--To 1500.
Communication--Europe, Central--History--To 1500.
Europe, Central--Commerce--History--To 1500.
Europe, Northern--Commerce--History--To 1500.
Excavations (Archaeology)--Europe, Central
Trading posts--Europe, Central--History--To 1500.
Princeton subject headings:
Central places--Europe, Central--Congresses.
Central places--Europe, Northern--Congresses.
Cities and towns, Medieval--Europe, Central--Congresses.
Cities and towns, Medieval--Europe, Northern--Congresses.
Civilization, Medieval--Congresses.
Commerce--History--Medieval, 500-1500--Congresses.
Commerce--History--To 500--Congresses.
Europe, Central--Commerce--History--To 1500--Congresses.
Europe, Northern--Commerce--History--To 1500--Congresses.
Excavations (Archaeology)--Europe, Central--Congresses.
Excavations (Archaeology)--Europe, Northern--Congresses.
Markets--Europe, Central--History--To 1500--Congresses.
Markets--Europe, Northern--History--To 1500--Congresses.
Trade routes--Europe, Central--History--To 1500--Congresses.
Trade routes--Europe, Northern--History--To 1500--Congresses.