Columbia subject headings:
Child labor--Great Britain--History--19th century.
Factory system--Great Britain.
Harvard subject headings:
Child labor--Great Britain
Child labor--Great Britain--History--19th century.
Factory system--Great Britain--History--19th century.
Factory system--Great Britain.
Labor--Great Britain
Working class--Great Britain
Working class--Great Britain--History--19th century
Princeton subject headings:
Child labor--Great Britain.
Factory system--Great Britain.
Labor--Great Britain.