Columbia subject headings:
France--History--19th century.
France--History--20th century.
Harvard subject headings:
France--History--19th century.
France--History--20th century.
Princeton subject headings:
France--Civilization--19th century.
France--Civilization--20th century.
France--Social life and customs--19th century.
France--Social life and customs--20th century.
Happiness--France.
National characteristics--France.
Popular culture--France.