United States. Bureau of Labor Statistics. "National Compensation Survey: Charlotte-Gastonia-Rock Hill, NC-SC, May 2006 : Bulletin of the United States Bureau of Labor Statistics, No. 3135-40," National Compensation Survey (Wages and Salaries) (March 2007). https://fraser.stlouisfed.org/title/6009/item/582952, accessed on September 13, 2024.