File:Pwa2.jpg: Revision history

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11 March 2022

22 April 2007

  • curprev 20:3620:36, 22 April 2007‎ imported>Stephen Ewen‎ 240 bytes +240‎ As a publication of the U.S. Government it is in the Public Domain.
  • curprev 17:5217:52, 22 April 2007‎ imported>Richard Jensen‎ 171 bytes +171‎ PWA illustration of multiplier effect, copyright: public domain; source: PWA, ''America Builds.The Record of PWA.'' U.S. Government Printing Office. 1939. Page Number: 5.
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