Columbia subject headings:
Irish literature--20th century--History and criticism.
Harvard subject headings:
Ireland--Civilization--20th century.
Ireland--In literature.
Irish literature--20th century--History and criticism
Literature and history--Ireland--History--20th century.
Princeton subject headings:
Ireland--Civilization--20th century.
Ireland--In literature.
Irish literature--20th century--History and criticism.
Literature and history--Ireland--History--20th century.