United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "April 2005," PPI Detailed Report (April 2005) : 5-8. https://fraser.stlouisfed.org/title/63/item/21834/toc/111252 , accessed on May 4, 2024.
United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "April 2005," PPI Detailed Report (April 2005) : 5-8. https://fraser.stlouisfed.org/title/63/item/21834/toc/111252 , accessed on May 4, 2024.