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USGS Online Publications

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[DIR] Parent Directory                                    -   
[DIR] ofr81-339/                     01-Sep-2005 14:07    -   
[DIR] ofr81-489/                     01-Sep-2005 14:07    -   
[DIR] ofr8161/                       01-Sep-2005 14:07    -   
[DIR] ofr_81-223/                    01-Sep-2005 14:01    -

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