United States. Bureau of the Census. "Consumers' Prices," in United States. Bureau of the Census. "May 1972," Business Conditions Digest (May 1972) : 72-72. https://fraser.stlouisfed.org/title/43/item/7566/toc/88824 , accessed on April 27, 2024.
United States. Bureau of the Census. "Consumers' Prices," in United States. Bureau of the Census. "May 1972," Business Conditions Digest (May 1972) : 72-72. https://fraser.stlouisfed.org/title/43/item/7566/toc/88824 , accessed on April 27, 2024.