Change in PPI Publication Structures for Resampled Industries Introduced in January 1997
United States. Bureau of Labor Statistics. "Change in PPI Publication Structures for Resampled Industries Introduced in January 1997," in United States. Bureau of Labor Statistics. "March 1997," PPI Detailed Report (March 1997) : 9-12. https://fraser.stlouisfed.org/title/63/item/21738/toc/309858 , accessed on April 18, 2024.