United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "June 1975," Business Conditions Digest (June 1975) : 78-78. https://fraser.stlouisfed.org/title/43/item/7346/toc/263754 , accessed on April 17, 2024.
United States. Bureau of the Census. "Stock Prices," in United States. Bureau of the Census. "June 1975," Business Conditions Digest (June 1975) : 78-78. https://fraser.stlouisfed.org/title/43/item/7346/toc/263754 , accessed on April 17, 2024.