Columbia subject headings:
Harvard subject headings:
North Rhine-Westphalia (Germany)--Economic conditions.
North Rhine-Westphalia (Germany)--Social conditions.
Textile industry--Germany--North Rhine-Westphalia--History--19th century.
Textile workers--Germany--North Rhine-Westphalia--History--19th century.
Princeton subject headings:
North Rhine-Westphalia (Germany)--Economic conditions.
North Rhine-Westphalia (Germany)--Social conditions.
Textile industry--Germany--North Rhine-Westphalia--History--19th century.
Textile workers--Germany--North Rhine-Westphalia--History--19th century.