United States. Bureau of Labor Statistics. "National Compensation Survey: Brownsville-Harlingen-San Benito, TX, August 2006 : Bulletin of the United States Bureau of Labor Statistics, No. 3135-20," National Compensation Survey (Wages and Salaries) (December 2006). https://fraser.stlouisfed.org/title/6009/item/582932, accessed on January 28, 2025.