United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "April 1984," PPI Detailed Report (April 1984) : 4-6. https://fraser.stlouisfed.org/title/63/item/21581/toc/234052 , accessed on May 9, 2024.
United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "April 1984," PPI Detailed Report (April 1984) : 4-6. https://fraser.stlouisfed.org/title/63/item/21581/toc/234052 , accessed on May 9, 2024.