Columbia subject headings:
Brown, George Mackay--Criticism and interpretation.
Heaney, Seamus, 1939-2013--Criticism and interpretation.
Hill, Geoffrey--Criticism and interpretation.
Harvard subject headings:
Brown, George Mackay--Criticism and interpretation.
English poetry--20th century--History and criticism
Great Britain--In literature.
Heaney, Seamus, 1939-2013--Criticism and interpretation.
Hill, Geoffrey--Criticism and interpretation.
History in literature.
Ireland--In literature.
Myth in literature.
Princeton subject headings:
Brown, George Mackay--Criticism and interpretation.
Heaney, Seamus, 1939-2013--Criticism and interpretation.
Hill, Geoffrey--Criticism and interpretation.