Wage Calendar, 1968 : Bulletin of the United States Bureau of Labor Statistics, No. 1593
United States. Bureau of Labor Statistics. "Wage Calendar, 1968 : Bulletin of the United States Bureau of Labor Statistics, No. 1593," Wage Calendar (1968). https://fraser.stlouisfed.org/title/4872/item/498419, accessed on April 19, 2024.