Occupational Wage Survey: Chicago, Illinois, April 1956 : Bulletin of the United States Bureau of Labor Statistics, No. 1188-15
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Chicago, Illinois, April 1956 : Bulletin of the United States Bureau of Labor Statistics, No. 1188-15," Occupational Wage Survey (1956). https://fraser.stlouisfed.org/title/4510/item/495171, accessed on April 23, 2024.