Productivity Indexes for Selected Industries, 1976 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1938
United States. Bureau of Labor Statistics. "Productivity Indexes for Selected Industries, 1976 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1938," Productivity Measures for Selected Industries (1977). https://fraser.stlouisfed.org/title/4825/item/499307, accessed on May 7, 2024.