Columbia subject headings:
Excavations (Archaeology)--Great Britain.
Great Britain--Antiquities.
Megalithic monuments--Great Britain.
Prehistoric peoples--Great Britain.
Harvard subject headings:
Excavations (Archaeology)--Great Britain
Great Britain--Antiquities.
Megalithic monuments--Great Britain
Prehistoric peoples--Great Britain
Princeton subject headings:
Cromlechs.
Great Britain--Antiquities.
Megalithic monuments--Great Britain.