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  <titleInfo>
    <nonSort>La </nonSort>
    <title>ciencia del medio ambiente : principios básicos</title>
  </titleInfo>
  <name type="personal">
    <namePart>Watt, Kenneth e. F.</namePart>
    <role>
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    <dateIssued encoding="marc">1978</dateIssued>
    <issuance>monographic</issuance>
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  <language>
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  <physicalDescription>
    <extent>334 páginas 25 x 19 cm</extent>
  </physicalDescription>
  <subject>
    <topic>Medio Ambiente</topic>
  </subject>
  <subject>
    <topic>Biología</topic>
  </subject>
  <subject>
    <topic>Ecología</topic>
  </subject>
  <subject>
    <topic>Diversidad de Especies</topic>
  </subject>
  <subject>
    <topic>Combustibles Fosiles</topic>
  </subject>
  <subject>
    <topic>Ecosistema</topic>
  </subject>
  <subject>
    <topic>Bosques</topic>
  </subject>
  <subject>
    <topic>Cuencas Hidrograficas</topic>
  </subject>
  <subject>
    <topic>Pastizales</topic>
  </subject>
  <identifier type="isbn">345-3688-9</identifier>
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    <recordIdentifier source="AR-ReUNN">251842</recordIdentifier>
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