Columbia subject headings:
American poetry--20th century--History and criticism.
Classicism--United States.
Didactic poetry, American--History and criticism.
Harvard subject headings:
American poetry--20th century--History and criticism
Classicism--United States.
Didactic poetry, American--History and criticism.
Princeton subject headings:
American poetry--20th century--History and criticism.
Classicism--United States.
Didactic poetry, American--History and criticism.