Columbia subject headings:
American literature--20th century--History and criticism.
Political science--United States--Philosophy--History--20th century.
Politics and literature--United States--History--20th century.
Harvard subject headings:
American literature--20th century--History and criticism
Political science--United States--Philosophy--History--20th century.
Politics and literature--United States--History--20th century.
Princeton subject headings:
American literature--20th century--History and criticism.
Political science--United States--Philosophy--History--20th century.
Politics and literature--United States--History--20th century.