Producer Price Indexes for Experimental Intermediate Demand by Production Flow
United States. Bureau of Labor Statistics. "Producer Price Indexes for Experimental Intermediate Demand by Production Flow," in United States. Bureau of Labor Statistics. "September 2012," PPI Detailed Report (September 2012) : 167-170. https://fraser.stlouisfed.org/title/63/item/21922/toc/373203 , accessed on March 28, 2024.