United States. Bureau of the Budget and United States. Office of Management and Budget. "New Obligational Authority, by Type and Function," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1966," Budget of the United States Government (January 25, 1965) : 36-36. https://fraser.stlouisfed.org/title/54/item/19019/toc/108457 , accessed on May 4, 2024.