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    <SEQUENTIAL>
      <record key="001" att1="001" value="LIB904250209" att2="LIB904250209">001   LIB904250209</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Buch</field>
      <field key="076" subkey="">EDV</field>
      <field key="100" subkey="">sundgren, bo</field>
      <field key="331" subkey="">theory of data bases</field>
      <field key="403" subkey="">1. ed.</field>
      <field key="410" subkey="">new york</field>
      <field key="412" subkey="">petrocelli/charter publishers, inc.</field>
      <field key="425" subkey="">1975</field>
      <field key="433" subkey="">xi, 244 pp.</field>
      <field key="451" subkey="">petrocelli information systems series</field>
      <field key="451" subkey="h">langefors, boerje (ed.)</field>
      <field key="517" subkey="c">from the table of contents: preface; introduction; the object system; information entities; the infological data base; data base</field>
      <field key="int" subkey="e">raction; box structure of aggregate messages; file design; process design;</field>
      <field key="540" subkey="">0-88405-307-5</field>
      <field key="544" subkey="">8707-A</field>
      <field key="700" subkey="b">001</field>
      <field key="700" subkey="b">knowledge</field>
      <field key="710" subkey="">database management</field>
    </SEQUENTIAL>
  </section>