United States. Bureau of Labor Statistics. "National Compensation Survey: Pilot Test, Minneapolis-St. Paul, MN-WI, January 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-11," National Compensation Survey (Wages and Salaries) (October 1997). https://fraser.stlouisfed.org/title/6009/item/582251, accessed on November 24, 2024.