World war veterans' legislation : hearings before the Committee on World War Veterans' Legislation, House of Representatives, Seventy-sixth Congress, first session, on H.R. 5, H.R. 1001, H.R. 2288, H.R. 2293, H.R. 2320, and H.R. 2725, to amend certain laws and veterans' regulations affecting world war veterans and their dependents