United States. Bureau of Labor Statistics. "National Compensation Survey: Boston-Worcester-Lawrence, MA-NH-ME-CT, October 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 3100-42," National Compensation Survey (Wages and Salaries) (July 2000). https://fraser.stlouisfed.org/title/6009/item/582417, accessed on December 28, 2024.