United States. Bureau of Labor Statistics. "Occupational Compensation Survey: Pay Only, Riverside-San Bernardino, California, Metropolitan Area, April 1995 : Bulletin of the United States Bureau of Labor Statistics, No. 3080-23," Occupational Compensation Survey: Pay (October 1995). https://fraser.stlouisfed.org/title/6073/item/584593, accessed on September 11, 2024.