Columbia subject headings:
American literature--20th century--History and criticism.
English literature--20th century--History and criticism.
English poetry--19th century--History and criticism.
Harvard subject headings:
American literature--20th century--History and criticism
English literature--20th century--History and criticism
English poetry--19th century--History and criticism
Princeton subject headings:
American literature--20th century--History and criticism.
English literature--20th century--History and criticism.
English poetry--19th century--History and criticism.