Columbia subject headings:
Harvard subject headings:
Employee fringe benefits--United States--Costs--Statistics--Charts, diagrams, etc.
Index numbers (Economics)
Labor costs--United States--Statistics--Charts, diagrams, etc.
Princeton subject headings:
Employee fringe benefits--United States--Costs--Statistics--Charts, diagrams, etc.
Labor costs--United States--Statistics--Charts, diagrams, etc.
Statistics.
Wages--United States--Statistics--Charts, diagrams, etc.