United States. Bureau of Labor Statistics. "Area Wage Survey: The Los Angeles-Long Beach and Anaheim-Santa Ana-Garden Grove, California, Metropolitan Area, March 1968 : Bulletin of the United States Bureau of Labor Statistics, No. 1575-64," Area Wage Survey (1968). https://fraser.stlouisfed.org/title/4655/item/498376, accessed on February 10, 2025.