United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "June 1974," Business Conditions Digest (June 1974) : 19-19. https://fraser.stlouisfed.org/title/43/item/7334/toc/353918 , accessed on May 3, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "June 1974," Business Conditions Digest (June 1974) : 19-19. https://fraser.stlouisfed.org/title/43/item/7334/toc/353918 , accessed on May 3, 2024.