Columbia subject headings:
Poverty--England--History--19th century.
Poverty--England--History--20th century.
Poverty--France--History--19th century.
Poverty--France--History--20th century.
Solidarity--England--History--19th century.
Solidarity--England--History--20th century.
Solidarity--France--History--19th century.
Solidarity--France--History--20th century.
Harvard subject headings:
Poverty--England--History--19th century.
Poverty--England--History--20th century.
Poverty--France--History--19th century.
Poverty--France--History--20th century.
Solidarity--England--History--19th century.
Solidarity--England--History--20th century.
Solidarity--France--History--19th century.
Solidarity--France--History--20th century.
Princeton subject headings: