Columbia subject headings:
Employers' liability--United States.
United States--Officials and employees--Salaries, etc.
Workers' compensation--United States.
Harvard subject headings:
Employers' liability--United States.
United States--Officials and employees--Salaries, etc.
Workers' compensation--United States.
Princeton subject headings:
Employers' liability--United States.
United States--Officials and employees--Salaries, etc.