Columbia subject headings:
Celtic philology--Periodicals.
Celts--Periodicals.
Civilization, Celtic--Periodicals.
Middle Ages--Periodicals.
Harvard subject headings:
Celtic philology--Periodicals.
Celts--Periodicals.
Civilization, Celtic--Periodicals.
Middle Ages--Periodicals
Princeton subject headings:
Celtic philology--Periodicals.
Celts--Periodicals.
Civilization, Celtic--Periodicals.
Middle Ages--History--Periodicals.
Periodicals.