Columbia subject headings:
Harvard subject headings:
Labor unions--Austria--Styria--History--19th century.
Strikes and lockouts--Austria--Styria--History--19th century.
Working class--Austria--Styria--History--19th century.
Princeton subject headings:
Labor unions--Austria--Styria--History--19th century.
Strikes and lockouts--Austria--Styria--History--19th century.
Working class--Austria--Styria--History--19th century.