United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "July 1977," Business Conditions Digest (July 1977) : 100-100. https://fraser.stlouisfed.org/title/43/item/7371/toc/219094 , accessed on April 18, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "July 1977," Business Conditions Digest (July 1977) : 100-100. https://fraser.stlouisfed.org/title/43/item/7371/toc/219094 , accessed on April 18, 2024.