National Industrial Defense Corps: Hearings Before the Committee on Military Affairs, United States Senate, Seventy-sixth Congress, Third Session, on S. 4105, a Bill to Create the National Industrial Defense Corps; and S. 4131, a Bill to Amend the National Defense Act, as Amended, by Adding Thereto Section 127(b), Providing for a National Industrial Defense Corps, and for Other Purposes. May 24, June 5, 6, and 19, 1940