United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "August 1974," Business Conditions Digest (August 1974) : 19-19. https://fraser.stlouisfed.org/title/43/item/7336/toc/232012 , accessed on May 11, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "August 1974," Business Conditions Digest (August 1974) : 19-19. https://fraser.stlouisfed.org/title/43/item/7336/toc/232012 , accessed on May 11, 2024.