Columbia subject headings:
Harvard subject headings:
Collective bargaining--Germany--History.
Industriegewerkschaft Metall für die Bundesrepublik Deutschland--History.
Metal-workers--Labor unions--Germany--History.
Steinkühler, Franz.
Princeton subject headings:
Collective bargaining--Germany--History.
Industriegewerkschaft Metall für die Bundesrepublik Deutschland--History.
Metal-workers--Labor unions--Germany--History.