United States. Bureau of Labor Statistics. "National Compensation Survey: Detroit-Ann Arbor-Flint, MI, April 2001 : Bulletin of the United States Bureau of Labor Statistics, No. 3110-30," National Compensation Survey (Wages and Salaries) (December 2001). https://fraser.stlouisfed.org/title/6009/item/582552, accessed on September 18, 2024.