United States. Bureau of Labor Statistics. "National Compensation Survey: Grand Rapids-Muskegon-Holland, MI, April 2002 : Bulletin of the United States Bureau of Labor Statistics, No. 3115-23," National Compensation Survey (Wages and Salaries) (December 2002). https://fraser.stlouisfed.org/title/6009/item/582624, accessed on September 16, 2024.