United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1990," Budget of the United States Government (January 9, 1989). https://fraser.stlouisfed.org/title/54/item/18996, accessed on November 23, 2023.
United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1990," Budget of the United States Government (January 9, 1989). https://fraser.stlouisfed.org/title/54/item/18996, accessed on November 23, 2023.