United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "June 1983," Business Conditions Digest (June 1983) : 88-88. https://fraser.stlouisfed.org/title/43/item/7442/toc/51374 , accessed on May 10, 2024.
United States. Bureau of the Census. "Foreign Trade," in United States. Bureau of the Census. "June 1983," Business Conditions Digest (June 1983) : 88-88. https://fraser.stlouisfed.org/title/43/item/7442/toc/51374 , accessed on May 10, 2024.