Columbia subject headings:
Harvard subject headings:
Poets, American--20th century--Political and social views.
Political poetry, American--History and criticism.
Politics and literature--United States--History--20th century.
Williams, William Carlos, 1883-1963--Political and social views.
Princeton subject headings:
Poets, American--20th century--Political and social views.
Williams, William Carlos, 1883-1963--Political and social views.