Columbia subject headings:
Dorestad (Extinct city)--Congresses.
Harvard subject headings:
Dorestad (Extinct city)--Congresses.
Excavations (Archaeology)--Netherlands
Excavations (Archaeology)--Netherlands--Wijk bij Duurstede--Congresses.
Wijk bij Duurstede (Netherlands)--Antiquities--Congresses.
Princeton subject headings:
Dorestad (Extinct city)--Congresses.
Excavations (Archaeology)--Netherlands--Wijk bij Duurstede--Congresses.
Wijk bij Duurstede (Netherlands)--Antiquities--Congresses.