National Compensation Survey: Milwaukee-Racine, WI, September 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-31
United States. Bureau of Labor Statistics. "National Compensation Survey: Milwaukee-Racine, WI, September 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-31," National Compensation Survey (Wages and Salaries) (Revised March 1999). https://fraser.stlouisfed.org/title/6009/item/582271, accessed on April 23, 2024.
United States Bureau of Labor Statistics