United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 2017," PPI Detailed Report (May 2017) : 3-8. https://fraser.stlouisfed.org/title/63/item/552391/toc/521313 , accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 2017," PPI Detailed Report (May 2017) : 3-8. https://fraser.stlouisfed.org/title/63/item/552391/toc/521313 , accessed on April 23, 2024.