United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1980," Business Conditions Digest (August 1980) : 102-102. https://fraser.stlouisfed.org/title/43/item/7408/toc/157226 , accessed on April 26, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1980," Business Conditions Digest (August 1980) : 102-102. https://fraser.stlouisfed.org/title/43/item/7408/toc/157226 , accessed on April 26, 2024.