United States. Bureau of the Budget and United States. Office of Management and Budget. "Summary of Net Budget Expenditures," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1957," Budget of the United States Government (January 16, 1956) : 85-85. https://fraser.stlouisfed.org/title/54/item/19010/toc/220047 , accessed on April 17, 2024.