Summary of Estimates, Appropriation, and Expenditures, Classified by Character and Objects of Expenditure
United States. Bureau of the Budget and United States. Office of Management and Budget. "Summary of Estimates, Appropriation, and Expenditures, Classified by Character and Objects of Expenditure," in United States. Bureau of the Budget and United States. Office of Management and Budget. "Fiscal Year Ending June 30, 1931," Budget of the United States Government (December 2, 1929) : 129-130. https://fraser.stlouisfed.org/title/54/item/18974/toc/68462 , accessed on April 23, 2024.