United States. Bureau of the Census. "Foreign Trade (chart)," in United States. Bureau of the Census. "June 1985," Business Conditions Digest (June 1985) : 49-49. https://fraser.stlouisfed.org/title/43/item/7466/toc/375543 , accessed on May 4, 2024.
United States. Bureau of the Census. "Foreign Trade (chart)," in United States. Bureau of the Census. "June 1985," Business Conditions Digest (June 1985) : 49-49. https://fraser.stlouisfed.org/title/43/item/7466/toc/375543 , accessed on May 4, 2024.