<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Water Resources Division, U.S. Geological Survey</dc:creator>
  <dc:date>1974</dc:date>
  <dc:description>Data from 5,594 samples collected from 1931 through 2006 were used to describe naturally occurring fluoride concentrations in freshwater aquifers in Louisiana. Statistical analyses were used to summarize fluoride concentrations in the aquifers.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/70039072</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Tour guide: John Wesley Powell Federal Building</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>