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  <titleInfo>
    <title>Química 2</title>
    <subTitle>b la química en el ambiente</subTitle>
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  <name type="personal">
    <namePart>a Nahon Vázquez, David</namePart>
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    <extent> 139 páginas :  ilustraciones</extent>
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  <note type="statement of responsibility"> David Nahón Vázquez</note>
  <note> A la cabeza del título: Enfoque por competencias</note>
  <note>compra</note>
  <subject>
    <topic>Química</topic>
  </subject>
  <subject>
    <topic>Naturaleza</topic>
    <topic>Efecto de los seres humanos sobre</topic>
  </subject>
  <classification authority="lcc">QD31.3 N342 2010</classification>
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    <recordContentSource authority="marcorg"> UNAMX</recordContentSource>
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