United States. Bureau of the Census. "Consumers' Prices," in United States. Bureau of the Census. "May 1972," Business Conditions Digest (May 1972) : 109-109. https://fraser.stlouisfed.org/title/43/item/7566/toc/88863 , accessed on April 23, 2024.
United States. Bureau of the Census. "Consumers' Prices," in United States. Bureau of the Census. "May 1972," Business Conditions Digest (May 1972) : 109-109. https://fraser.stlouisfed.org/title/43/item/7566/toc/88863 , accessed on April 23, 2024.