National Compensation Survey: Minneapolis-St. Paul, MN-WI, November 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 3100-43
United States. Bureau of Labor Statistics. "National Compensation Survey: Minneapolis-St. Paul, MN-WI, November 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 3100-43," National Compensation Survey (Wages and Salaries) (July 2000). https://fraser.stlouisfed.org/title/6009/item/582418, accessed on April 25, 2024.
United States Bureau of Labor Statistics