United States. Bureau of the Budget
and United States. Office of Management and Budget. "Fiscal Year 2009 : Amendments to and Revisions in Budget Authority,"
Budget of the United States Government - Appendix
(February 4, 2008).
https://fraser.stlouisfed.org/title/233/item/5763/content/pdf/BUDGET-2009-APP-2-2, accessed on October 14, 2026.