United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1989," Budget of the United States Government (February 18, 1988). https://fraser.stlouisfed.org/title/54/item/18995, accessed on May 28, 2023.
United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1989," Budget of the United States Government (February 18, 1988). https://fraser.stlouisfed.org/title/54/item/18995, accessed on May 28, 2023.