Columbia subject headings:
Harvard subject headings:
Industrial revolution--Europe, Western.
Industrial sociology--Europe, Western.
Labor--Europe, Western--History--19th century.
Labor--Europe, Western--History--20th century.
Working class--Europe, Western--19th century.
Working class--Europe, Western--20th century.
Princeton subject headings:
Industrial revolution--Europe, Western.
Industrial sociology--Europe, Western.
Labor--Europe, Western--History--19th century.
Labor--Europe, Western--History--20th century.
Working class--Europe, Western--19th century.
Working class--Europe, Western--20th century.