Columbia subject headings:
Paris (France)--Social conditions--19th century.
Paris (France)--Social life and customs--19th century.
Harvard subject headings:
Immigrants--Cultural assimilation--France--Paris--History--19th century.
Paris (France)--Social conditions--19th century.
Paris (France)--Social conditions--History--19th century.
Sociology, Urban--France--Paris--History--19th century.
Working class--France--Paris--History--19th century.
Princeton subject headings:
Immigrants--Cultural assimilation--France--Paris--History--19th century.
Paris (France)--Social conditions--History--19th century.
Sociology, Urban--France--Paris--History--19th century.
Working class--France--Paris--History--19th century.