United States. Bureau of the Budget and United States. Office of Management and Budget. "Trust Receipts by Agency and Receipt Type," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1956," Budget of the United States Government (January 17, 1955) : 1139-1142. https://fraser.stlouisfed.org/title/54/item/19009/toc/351163 , accessed on May 13, 2024.