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  <titleInfo>
    <title>Reservas de la biósfera en el estado de Durango; trabajos varios</title>
  </titleInfo>
  <name type="personal">
    <namePart>Halffter, Gonzalo</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
    <role>
      <roleTerm type="text">ed.</roleTerm>
    </role>
  </name>
  <typeOfResource>text</typeOfResource>
  <originInfo>
    <place>
      <placeTerm type="text">México, D.F</placeTerm>
    </place>
    <publisher>Instituto de Ecología</publisher>
    <dateIssued>1978</dateIssued>
    <issuance>monographic</issuance>
  </originInfo>
  <physicalDescription>
    <extent>198 p. : láms. ; ilus. ; gráfs</extent>
  </physicalDescription>
  <subject>
    <topic>Recursos naturales</topic>
    <topic>Conservación</topic>
    <topic>Durango</topic>
  </subject>
  <subject>
    <topic>Vida silvestre</topic>
    <topic>Conservación</topic>
    <topic>Durango</topic>
  </subject>
  <classification authority="ddc">333.72 H3</classification>
  <relatedItem type="series">
    <titleInfo>
      <title>Publicación ; 4</title>
    </titleInfo>
  </relatedItem>
  <identifier type="lccn">24449</identifier>
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    <recordCreationDate encoding="marc">971013</recordCreationDate>
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