United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1981," Business Conditions Digest (August 1981) : 102-102. https://fraser.stlouisfed.org/title/43/item/7420/toc/89370 , accessed on July 10, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1981," Business Conditions Digest (August 1981) : 102-102. https://fraser.stlouisfed.org/title/43/item/7420/toc/89370 , accessed on July 10, 2024.