United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "May 1969," Business Conditions Digest (May 1969) : 91-91. https://fraser.stlouisfed.org/title/43/item/7530/toc/303399 , accessed on May 8, 2024.
United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "May 1969," Business Conditions Digest (May 1969) : 91-91. https://fraser.stlouisfed.org/title/43/item/7530/toc/303399 , accessed on May 8, 2024.