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 Name                           Last modified      Size  
 Parent Directory                                    -   
 bul1969b_plate1.pdf            2015-07-17 19:09   22M  
 bul1969b_plate2.pdf            2015-07-17 19:08  199K  
 bul1969b_report.pdf            2015-07-20 15:30  2.0M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/bul/1969b/pdf/
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