Area Wage Survey: Riverside-San Bernardino-Ontario, California, Metropolitan Area, December 1972 : Bulletin of the United States Bureau of Labor Statistics, No. 1775-60
United States. Bureau of Labor Statistics. "Area Wage Survey: Riverside-San Bernardino-Ontario, California, Metropolitan Area, December 1972 : Bulletin of the United States Bureau of Labor Statistics, No. 1775-60," Area Wage Survey (1973). https://fraser.stlouisfed.org/title/4655/item/498965, accessed on March 29, 2024.