United States. Bureau of the Budget and United States. Office of Management and Budget. "Receipts Offset Against Budget Authority and Outlays," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year 1969," Budget of the United States Government (January 29, 1968) : 73-75. https://fraser.stlouisfed.org/title/54/item/19022/toc/380809 , accessed on April 24, 2024.