United States. Bureau of Labor Statistics. "National Compensation Survey: Charlotte-Gastonia-Rock Hill, NC-SC, July 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 3100-38,"
National Compensation Survey (Wages and Salaries)
(June 2000).
https://fraser.stlouisfed.org/title/6009/item/582413, accessed on January 5, 2026.