United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "July 1969," Business Conditions Digest (July 1969) : 91-91. https://fraser.stlouisfed.org/title/43/item/7532/toc/358137 , accessed on May 4, 2024.
United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "July 1969," Business Conditions Digest (July 1969) : 91-91. https://fraser.stlouisfed.org/title/43/item/7532/toc/358137 , accessed on May 4, 2024.