<section name="raw">
    <SEQUENTIAL>
      <record key="001" att1="001" value="137415" att2="137415">001   137415</record>
      <field key="010" subkey="">LIB902845007</field>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Sammelband</field>
      <field key="090" subkey="">014</field>
      <field key="100" subkey="">robinson, joan</field>
      <field key="331" subkey="">marginal productivity</field>
      <field key="525" subkey="">reprinted from: the indian economic review, april, 1967</field>
      <field key="544" subkey="n">6061-A/IV;14</field>
      <field key="596" subkey="a">129 - 138</field>
    </SEQUENTIAL>
  </section>