United States. Bureau of Labor Statistics. "National Compensation Survey: Houston-Galveston-Brazoria, TX, December 2001 : Bulletin of the United States Bureau of Labor Statistics, No. 3115-03," National Compensation Survey (Wages and Salaries) (August 2002). https://fraser.stlouisfed.org/title/6009/item/582604, accessed on January 15, 2025.