United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "October 1970," Business Conditions Digest (October 1970) : 70-70. https://fraser.stlouisfed.org/title/43/item/7547/toc/124640 , accessed on April 24, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "October 1970," Business Conditions Digest (October 1970) : 70-70. https://fraser.stlouisfed.org/title/43/item/7547/toc/124640 , accessed on April 24, 2024.