United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "January 2014," PPI Detailed Report (January 2014) : 2-3. https://fraser.stlouisfed.org/title/63/item/21938/toc/316570 , accessed on April 19, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "January 2014," PPI Detailed Report (January 2014) : 2-3. https://fraser.stlouisfed.org/title/63/item/21938/toc/316570 , accessed on April 19, 2024.