Columbia subject headings:
Harvard subject headings:
Employee fringe benefits--Germany--History.
Industrial policy--Germany--History--19th century.
Industries--Social aspects--Germany--History--19th century.
Labor laws and legislation--Germany--History
Public welfare--Germany--History.
Social security--Germany--History--19th century.
Princeton subject headings:
Industrial policy--Germany--History--19th century.
Industries--Social aspects--Germany--History--19th century.
Social security--Germany--History--19th century.