United States. Bureau of Labor Statistics. "National Compensation Survey: Pilot Test, Detroit-Ann Arbor-Flint, MI, January 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-6," National Compensation Survey (Wages and Salaries) (October 1997). https://fraser.stlouisfed.org/title/6009/item/582246, accessed on December 12, 2024.