<?xml version="1.0"?>

 <rdf:Description xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Calcium and magnesium in drinking-water : Public health significance</dc:title>
  <dc:creator>
   World Health Organization
  </dc:creator>
  <dc:type>text</dc:type>
  <dc:publisher>Geneva : WHO</dc:publisher>
  <dc:date>2009</dc:date>
  <dc:language>N  </dc:language>
  <dc:subject>DRINKING WATER</dc:subject>
  <dc:identifier>URN:ISBN:978-92-4-156355 0</dc:identifier>
</rdf:Description>