Restoring and maintaining the average purchasing power of the dollar : hearings before the Committee on Banking and Currency, United States Senate, Seventy-second Congress, first session, on H.R. 11499, an act for restoring and maintaining the purchasing power of the dollar, S. 4429, a bill to restore and maintain the average purchasing power of the dollar by the expansion and contraction of credits and currency, and for other purposes. May 12, 13, and 18, 1932.