United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "March 2014," PPI Detailed Report (March 2014) : 9-12. https://fraser.stlouisfed.org/title/63/item/21940/toc/243756 , accessed on April 19, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "March 2014," PPI Detailed Report (March 2014) : 9-12. https://fraser.stlouisfed.org/title/63/item/21940/toc/243756 , accessed on April 19, 2024.