Producer Price Indexes and Percent Changes for Commodity Groupings and Individual Items
United States. Bureau of Labor Statistics. "Producer Price Indexes and Percent Changes for Commodity Groupings and Individual Items," in United States. Bureau of Labor Statistics. "September 2009," PPI Detailed Report (September 2009) : 110-159. https://fraser.stlouisfed.org/title/63/item/21888/toc/144809 , accessed on April 17, 2024.