Columbia subject headings:
Employers' liability--United States.
Labor laws and legislation--United States.
Workers' compensation--Law and legislation--United States.
Harvard subject headings:
Employers' liability--United States.
Labor laws and legislation--United States
Workers' compensation--Law and legislation--United States.
Princeton subject headings:
Employers' liability--United States.
Labor laws and legislation--United States.
Workers' compensation--Law and legislation--United States.