United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "July 1974," Business Conditions Digest (July 1974) : 77-77. https://fraser.stlouisfed.org/title/43/item/7335/toc/332340 , accessed on April 26, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "July 1974," Business Conditions Digest (July 1974) : 77-77. https://fraser.stlouisfed.org/title/43/item/7335/toc/332340 , accessed on April 26, 2024.