Columbia subject headings:
Harvard subject headings:
Employee rights--History--19th century--Congresses.
Employee rights--Switzerland--Glarus (Canton)--History--19th century--Congresses.
Factory laws and legislation--History--19th century--Congresses.
Factory laws and legislation--Switzerland--Glarus (Canton)--History--19th century--Congresses.
Labor laws and legislation--History--19th century--Congresses.
Labor laws and legislation--Switzerland--Glarus (Canton)--History--19th century--Congresses.
Princeton subject headings:
Employee rights--History--19th century--Congresses.
Employee rights--Switzerland--Glarus (Canton)--History--19th century--Congresses.
Factory laws and legislation--History--19th century--Congresses.
Factory laws and legislation--Switzerland--Glarus (Canton)--History--19th century--Congresses.
Labor laws and legislation--History--19th century--Congresses.
Labor laws and legislation--Switzerland--Glarus (Canton)--History--19th century--Congresses.