United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "March 2017," PPI Detailed Report (March 2017) : 2-2. https://fraser.stlouisfed.org/title/63/item/540624/toc/521161 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "March 2017," PPI Detailed Report (March 2017) : 2-2. https://fraser.stlouisfed.org/title/63/item/540624/toc/521161 , accessed on March 28, 2024.