United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 1979," PPI Detailed Report (May 1979) : 5-7. https://fraser.stlouisfed.org/title/63/item/21522/toc/404018 , accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 1979," PPI Detailed Report (May 1979) : 5-7. https://fraser.stlouisfed.org/title/63/item/21522/toc/404018 , accessed on April 25, 2024.