Columbia subject headings:
Harvard subject headings:
Darent Valley (England)--Antiquities.
England--Antiquities.
Excavations (Archaeology)--England--Darent River Valley.
Excavations (Archaeology)--England--Darent Valley.
Kent (England)--Antiquities.
Princeton subject headings:
Darent Valley (England)--Antiquities.
England--Antiquities.
Excavations (Archaeology)--England--Darent River Valley.
Kent (England)--Antiquities.