Columbia subject headings:
United States--Historiography.
United States--Intellectual life--20th century.
United States--Intellectual life--Historiography.
Harvard subject headings:
United States--Historiography.
United States--Intellectual life--20th century.
United States--Intellectual life--Historiography.
Princeton subject headings:
United States--Historiography.
United States--Intellectual life--20th century.
United States--Intellectual life--Historiography.