United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "April 1995," PPI Detailed Report (April 1995) : 3-4. https://fraser.stlouisfed.org/title/63/item/21715/toc/149152 , accessed on May 10, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "April 1995," PPI Detailed Report (April 1995) : 3-4. https://fraser.stlouisfed.org/title/63/item/21715/toc/149152 , accessed on May 10, 2024.