Indexes of Output Per Man-Hour: Selected Industries, 1972 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1758
United States. Bureau of Labor Statistics. "Indexes of Output Per Man-Hour: Selected Industries, 1972 Edition : Bulletin of the United States Bureau of Labor Statistics, No. 1758," Productivity Measures for Selected Industries (1972). https://fraser.stlouisfed.org/title/4825/item/498897, accessed on April 24, 2024.