Columbia subject headings:
Harvard subject headings:
English poetry--20th century--Bibliography.
English poetry--Irish authors--Bibliography.
English poetry--Ulster (Northern Ireland and Ireland)--Bibliography.
Poets, Irish--Homes and haunts--Ulster (Northern Ireland and Ireland)
Poets, Irish--Ulster (Northern Ireland and Ireland)--Biography.
Ulster (Northern Ireland and Ireland)--Bio-bibliography.
Ulster (Northern Ireland and Ireland)--In literature--Bibliography.
Ulster (Northern Ireland and Ireland)--Intellectual life.
Princeton subject headings:
English poetry--20th century--Bibliography.
English poetry--Irish authors--Bibliography.
English poetry--Ulster (Northern Ireland and Ireland)--Bibliography.
Poets, Irish--Ulster (Northern Ireland and Ireland)--Biography.
Ulster (Northern Ireland and Ireland)--Bio-bibliography.