United States. Bureau of Labor Statistics. "Producer Price Indexes—September 2023," Producer Price Indexes (October 11, 2023). https://fraser.stlouisfed.org/title/6837/item/655148, accessed on April 30, 2024.
United States. Bureau of Labor Statistics. "Producer Price Indexes—September 2023," Producer Price Indexes (October 11, 2023). https://fraser.stlouisfed.org/title/6837/item/655148, accessed on April 30, 2024.