United States. Bureau of the Budget and United States. Office of Management and Budget. "Federal Programs by Function: Meeting National Needs," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1988 : Supplement," Budget of the United States Government (January 5, 1987) : 131-302. https://fraser.stlouisfed.org/title/54/item/579144/toc/526368 , accessed on April 25, 2024.