Occupational Wage Survey: Rockford, Illinois, May 1965 : Bulletin of the United States Bureau of Labor Statistics, No. 1430-63
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Rockford, Illinois, May 1965 : Bulletin of the United States Bureau of Labor Statistics, No. 1430-63," Occupational Wage Survey (1965). https://fraser.stlouisfed.org/title/4510/item/498012, accessed on June 4, 2024.