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 Name                           Last modified      Size  
 Parent Directory                                    -   
 coverthb_.jpg                  2018-07-12 13:47   25K  
 ofr.20171135.pdf               2018-07-12 13:45  3.9M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2017/1135/
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