Columbia subject headings:
French language--19th century.
French language--Dialects--France--Paris.
French language--Slang.
Paris (France)--Intellectual life.
Paris (France)--Social life and customs.
Harvard subject headings:
French language--19th century.
French language--Dialects--France--Paris.
French language--Slang.
Paris (France)--Intellectual life.
Paris (France)--Social life and customs.
Princeton subject headings:
French language--19th century.
French language--Dialects--France--Paris.
French language--Slang.
Paris (France)--Intellectual life--20th century.
Paris (France)--Social life and customs.