United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "October 1969," Business Conditions Digest (October 1969) : 70-70. https://fraser.stlouisfed.org/title/43/item/7535/toc/394765 , accessed on March 29, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "October 1969," Business Conditions Digest (October 1969) : 70-70. https://fraser.stlouisfed.org/title/43/item/7535/toc/394765 , accessed on March 29, 2024.