Columbia subject headings:
Ireland--Antiquities.
Megalithic monuments--Ireland.
Newgrange Site (Ireland)
Passage Graves culture.
Harvard subject headings:
Ireland--Antiquities.
Megalithic monuments--Ireland
Newgrange Site (Ireland)
Passage Graves culture.
Princeton subject headings:
Ireland--Antiquities.
Megalithic monuments--Ireland.
Newgrange Site (Ireland)
Passage Graves culture.