United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "May 1980," Business Conditions Digest (May 1980) : 90-92. https://fraser.stlouisfed.org/title/43/item/7405/toc/250525 , accessed on June 24, 2024.
United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "May 1980," Business Conditions Digest (May 1980) : 90-92. https://fraser.stlouisfed.org/title/43/item/7405/toc/250525 , accessed on June 24, 2024.