United States. Bureau of the Budget and United States. Office of Management and Budget. "Federal Programs in Meterology," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1964," Budget of the United States Government (January 17, 1963) : 399-399. https://fraser.stlouisfed.org/title/54/item/19017/toc/269498 , accessed on April 19, 2024.