71,000 WPA Employees Developing 278 Defense Airports : August 7, 1941, 4-2259
United States. Works Progress Administration. "71,000 WPA Employees Developing 278 Defense Airports : August 7, 1941, 4-2259," Press Releases of the Works Progress Administration (August 7, 1941). https://fraser.stlouisfed.org/title/6753/item/619992, accessed on May 6, 2024.