Columbia subject headings:
American poetry--20th century--History and criticism.
English poetry--20th century--History and criticism.
Literature and science--Great Britain--History--20th century.
Literature and science--United States--History--20th century.
Literature and technology--Great Britain--History--20th century.
Literature and technology--United States--History--20th century.
Harvard subject headings:
American poetry--20th century--History and criticism
English poetry--20th century--History and criticism
Literature and science--Great Britain--History--20th century.
Literature and science--United States--History--20th century
Literature and technology--Great Britain--History--20th century.
Literature and technology--United States--History--20th century.
Princeton subject headings: