Columbia subject headings:
Dolmens--France--Périgord.
France--Antiquities.
Menhirs--France--Périgord.
Périgord (France)--Antiquities.
Harvard subject headings:
Dolmens--France--Périgord.
France--Antiquities.
Menhirs--France--Périgord.
Périgord (France)--Antiquities.
Princeton subject headings: