Producer Price Indexes for Commodity and Service Groupings and Individual Items
United States. Bureau of Labor Statistics. "Producer Price Indexes for Commodity and Service Groupings and Individual Items," in United States. Bureau of Labor Statistics. "July 2015," PPI Detailed Report (July 2015) : 33-90. https://fraser.stlouisfed.org/title/63/item/496045/toc/511847 , accessed on April 18, 2024.