United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "February 1982," PPI Detailed Report (February 1982) : 3-3. https://fraser.stlouisfed.org/title/63/item/21555/toc/42558 , accessed on May 4, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "February 1982," PPI Detailed Report (February 1982) : 3-3. https://fraser.stlouisfed.org/title/63/item/21555/toc/42558 , accessed on May 4, 2024.