United States. Bureau of Labor Statistics. "Major Collective Bargaining Agreements: Wage-Incentive, Production-Standard, and Time-Study Provisions : Bulletin of the United States Bureau of Labor Statistics, No. 1425-18," Major Collective Bargaining Agreements (July 1979). https://fraser.stlouisfed.org/title/4641/item/497944, accessed on November 22, 2024.