United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1969," Business Conditions Digest (August 1969) : 69-69. https://fraser.stlouisfed.org/title/43/item/7533/toc/216377 , accessed on April 23, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "August 1969," Business Conditions Digest (August 1969) : 69-69. https://fraser.stlouisfed.org/title/43/item/7533/toc/216377 , accessed on April 23, 2024.