United States. Bureau of Labor Statistics. "Food Products," in United States. Bureau of Labor Statistics. "July 1988," PPI Detailed Report (July 1988) : 18-30. https://fraser.stlouisfed.org/title/63/item/21632/toc/109862 , accessed on May 10, 2024.
United States. Bureau of Labor Statistics. "Food Products," in United States. Bureau of Labor Statistics. "July 1988," PPI Detailed Report (July 1988) : 18-30. https://fraser.stlouisfed.org/title/63/item/21632/toc/109862 , accessed on May 10, 2024.