United States. Bureau of Labor Statistics. "Occupational Compensation Survey: Pay and Benefits, Chicago-Gary-Kenosha, IL-IN-WI, Consolidated Metropolitan Area, June 1996 : Bulletin of the United States Bureau of Labor Statistics, No. 3085-33," Occupational Compensation Survey: Pay (December 1996). https://fraser.stlouisfed.org/title/6073/item/584655, accessed on November 23, 2024.