United States. Office of Management and Budget. "Federal Borrowing and Debt," in United States. Office of Management and Budget. "Fiscal Year 2006," Budget of the United States Government - Analytical Perspectives (February 7, 2005) : 257-271. https://fraser.stlouisfed.org/title/425/item/7286/toc/356663 , accessed on April 17, 2024.