Columbia subject headings:
Labor unions--Europe--History.
Labor unions--Great Britain--History.
Skilled labor--Europe--History.
Skilled labor--Great Britain--History.
Working class--Europe--History.
Working class--Great Britain--History.
Harvard subject headings:
Labor unions--Europe--History
Labor unions--Great Britain--History
Skilled labor--Europe--History.
Skilled labor--Great Britain--History.
Working class--Europe--History
Working class--Great Britain--History
Princeton subject headings:
Labor unions--Europe--History.
Labor unions--Great Britain--History.
Labor--Great Britain--History.
Skilled labor--Europe--History.
Skilled labor--Great Britain--History.
Working class--Europe--History.