Productivity Indexes for Selected Industries, 1975 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1890
United States. Bureau of Labor Statistics. "Productivity Indexes for Selected Industries, 1975 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1890," Productivity Measures for Selected Industries (1976). https://fraser.stlouisfed.org/title/4825/item/499188, accessed on April 18, 2024.