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 Name                           Last modified      Size  
 Parent Directory                                    -   
 plate-1.pdf                    2022-05-05 12:14  2.2M  
 report-thumb.jpg               2022-05-05 12:14   53K  
 report.pdf                     2022-05-05 12:14   16M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1981/0138/
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