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