Private Service-Producing
United States. Bureau of Labor Statistics. "Private Service-Producing," in United States. Bureau of Labor Statistics. "Employment, Hours, and Earnings, United States, 1988-96 : Bulletin of the United States Bureau of Labor Statistics, No. 2481," Employment and Earnings, United States (August 1996) : 265-265. https://fraser.stlouisfed.org/title/189/item/5439/toc/123452 , accessed on April 24, 2024.