Columbia subject headings:
Arbitration, Industrial--United States.
Collective bargaining--United States.
Industrial policy--United States.
Labor laws and legislation--United States.
Labor unions--United States.
United States. National Industrial Recovery Act of 1933.
Harvard subject headings:
Collective bargaining--United States.
Labor laws and legislation--United States
Princeton subject headings:
Collective bargaining--United States.
Labor laws and legislation--United States.