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• Sign on Bridge near Ppg Plant Protests Air Pollution 02/1973

  • Uploaded by: U.S. National Archives
  • License: No known copyright restrictions
  • 1 comment
  • 11 favorites
  • 14,640 views
  • Date taken: 1973-02
  • Date uploaded: 2009-09-18
  • Tags: usnationalarchives, environmentalprotectionagency, documerica, nara:arcid=546372, ponce, puertorico, pollution
  • Visibility: public