Columbia subject headings:
Collective bargaining--United States.
Collective bargaining.
Iron and steel workers--United States.
Steel industry and trade--United States.
Strikes and lockouts--Steel industry--United States.
Harvard subject headings:
Collective bargaining--United States.
Collective bargaining.
Iron and steel workers--United States.
Steel industry and trade--United States
Strikes and lockouts--Steel industry--United States
Princeton subject headings:
Collective bargaining.
Iron and steel workers--United States.
Steel industry and trade--United States.
Strikes and lockouts--Steel industry--United States.