United States. Office of Management and Budget. "Federal Grants to State and Local Governments," in United States. Office of Management and Budget. "Fiscal Year 2018," Historical Tables, Budget of the United States Government (May 23, 2017) : 268-335. https://fraser.stlouisfed.org/title/383/item/552378/toc/521371 , accessed on April 30, 2024.