Columbia subject headings:
Harvard subject headings:
Britons--Monuments--Guidebooks.
Celts--Great Britain--History.
Celts--Monuments--Great Britain--Guidebooks.
Great Britain--Antiquities, Celtic--Guidebooks.
Great Britain--Guidebooks.
Great Britain--History--To 1066.
Historic sites--Great Britain--Guidebooks
Princeton subject headings:
Celts--Great Britain--History.
Great Britain--Antiquities, Celtic--Guidebooks.
Great Britain--Guidebooks.
Guidebooks.
Historic sites--Great Britain--Guidebooks.