United States. Bureau of Labor Statistics. "National Compensation Survey: Los Angeles-Riverside-Orange County, CA, January 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-12," National Compensation Survey (Wages and Salaries) (Revised March 1999). https://fraser.stlouisfed.org/title/6009/item/582252, accessed on September 21, 2024.