Columbia subject headings:
Harvard subject headings:
France--Intellectual life--19th century.
France--Intellectual life--20th century.
Intellectuals--France--Biography.
Le Bon, Gustave, 1841-1931.
Scholars--France--Biography.
Sociologists--France--Biography.
Sociology--France--History
Princeton subject headings:
Le Bon, Gustave, 1841-1931.
Scholars--France--Biography.