Columbia subject headings:
Harvard subject headings:
Civilization, Celtic--Periodicals.
Monasticism and religious orders--France--Brittany--Periodicals.
Monasticism and religious orders--Great Britain--Periodicals.
Princeton subject headings:
Civilization, Celtic--Periodicals.
Monasticism and religious orders--France--Brittany--Periodicals.
Monasticism and religious orders--Great Britain--Periodicals.