United States. Bureau of Labor Statistics. "September 1972," CPI Detailed Report (September 1972). https://fraser.stlouisfed.org/title/58/item/22197, accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "September 1972," CPI Detailed Report (September 1972). https://fraser.stlouisfed.org/title/58/item/22197, accessed on April 18, 2024.