United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "April 1988," Business Conditions Digest (April 1988) : 90-92. https://fraser.stlouisfed.org/title/43/item/7500/toc/188308 , accessed on July 10, 2024.
United States. Bureau of the Census. "Price Movements," in United States. Bureau of the Census. "April 1988," Business Conditions Digest (April 1988) : 90-92. https://fraser.stlouisfed.org/title/43/item/7500/toc/188308 , accessed on July 10, 2024.