Columbia subject headings:
Harvard subject headings:
Dissertations, Academic--Great Britain--Bibliography
Dissertations, Academic--Ireland--Bibliography.
Dissertations, Academic--North America--Bibliography.
Working class--Great Britain--Bibliography.
Working class--Great Britain--History--Bibliography.
Working class--Ireland--History--Bibliography.
Princeton subject headings:
Dissertations, Academic--Great Britain--Bibliography.
Dissertations, Academic--Ireland--Bibliography.
Dissertations, Academic--United States--Bibliography.
Labor--Great Britain--History--Bibliography.