Columbia subject headings:
American literature--20th century--History and criticism.
American literature--Irish American authors--History and criticism.
Harvard subject headings:
American literature--20th century--History and criticism
American literature--Irish American authors--20th century--History and criticism.
American literature--Irish American authors--History and criticism.
English literature--Irish authors--History and criticism
Princeton subject headings:
American literature--20th century--History and criticism.
American literature--Irish American authors--History and criticism.