<?xml version="1.0"?>
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  <oai_dc:dc>
    <dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">De electrometrische bepaling van de waterstofionenconcentratie in de latex van Hevea Brasiliensis en hare toepassing op technische vraagstukken = the electrometric determination of the hydrogen ion concentration in the latex of Hevea Brasiliensis and its applicability to technical problems /</dc:title>
    <dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">
   Harpen, Nicolaas Hendrik van
  </dc:creator>
    <dc:type xmlns:dc="http://purl.org/dc/elements/1.1/">text</dc:type>
    <dc:publisher xmlns:dc="http://purl.org/dc/elements/1.1/">Medan : Varekamp,</dc:publisher>
    <dc:date xmlns:dc="http://purl.org/dc/elements/1.1/">1930</dc:date>
    <dc:language xmlns:dc="http://purl.org/dc/elements/1.1/">dut</dc:language>
    <dc:description xmlns:dc="http://purl.org/dc/elements/1.1/">Teks dalam bahasa Belanda dan Inggris</dc:description>
    <dc:subject xmlns:dc="http://purl.org/dc/elements/1.1/">Elektrokimia--</dc:subject>
  </oai_dc:dc>
</oai_dc:dcCollection>