Columbia subject headings:
Celts--Ireland.
English language--Ireland.
English literature--Irish authors--History and criticism.
Ireland--Civilization.
Ireland--In literature.
Irish philology.
Harvard subject headings:
Celts--Ireland.
English language--Ireland.
English language--Social aspects--Ireland.
English literature--Irish authors--History and criticism
Ireland--Civilization.
Ireland--In literature.
Ireland--Languages.
Irish philology.
Literature and society--Ireland.
Princeton subject headings:
Celts--Ireland.
English language--Ireland.
English literature--Irish authors--History and criticism.
Ireland--Civilization.
Ireland--In literature.
Irish philology.