United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2013," PPI Detailed Report (July 2013) : 2-3. https://fraser.stlouisfed.org/title/63/item/21932/toc/321405 , accessed on April 28, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2013," PPI Detailed Report (July 2013) : 2-3. https://fraser.stlouisfed.org/title/63/item/21932/toc/321405 , accessed on April 28, 2024.