Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--Germany--Krefeld.
Franks--Germany--Krefeld.
Krefeld (Germany)--Antiquities, Roman.
Romans--Germany--Krefeld.
Princeton subject headings:
Franks--Germany--Krefeld.
Germany--Antiquities, Roman.
Krefeld (Germany)--Antiquities, Roman.
Romans--Germany--Krefeld.