United States. Bureau of Labor Statistics. "National Compensation Survey: Elkhart-Goshen, IN, September 2001 : Bulletin of the United States Bureau of Labor Statistics, No. 3110-59,"
National Compensation Survey (Wages and Salaries)
(June 2002).
https://fraser.stlouisfed.org/title/6009/item/582581, accessed on April 6, 2026.