Columbia subject headings:
Harvard subject headings:
Americans--Foreign countries
Authors, American--20th century--Biography
Authors, American--20th century--Political activity.
History, Modern--20th century
Politics and literature.
United States--Relations.
Princeton subject headings:
Americans--Foreign countries.
Authors, American--20th century--Biography.
Authors, American--20th century--Political activity.
History, Modern--20th century.
Politics and literature.
United States--Relations.