United States. Bureau of Labor Statistics. "National Compensation Survey: Occupational Wages in the Middle Atlantic Census Division, 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 2544-2," National Compensation Survey: Occupational Wages in the United States (July 2001). https://fraser.stlouisfed.org/title/6084/item/584704, accessed on September 10, 2024.