Columbia subject headings:
Harvard subject headings:
American literature--20th century--History and criticism
American literature--Political aspects.
Authors, American--20th century--Political and social views
Politics and literature--United States--History--20th century.
Politics in literature.
Princeton subject headings:
American literature--20th century--History and criticism.
Authors, American--20th century--Political and social views.
Politics and literature--United States--History--20th century.
Politics in literature.