<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
  <record>
    <leader>00000cam a22000004  4500</leader>
    <controlfield tag="001">CSAB20210007033</controlfield>
    <controlfield tag="003">CSAB</controlfield>
    <controlfield tag="005">20210810083044.0</controlfield>
    <controlfield tag="008">210810s1883    espa          001 0 spa d</controlfield>
    <datafield tag="040" ind1=" " ind2=" ">
      <subfield code="a">CS-AHM</subfield>
      <subfield code="b">spa</subfield>
    </datafield>
    <datafield tag="100" ind1="1" ind2=" ">
      <subfield code="0">CSAA20210012969</subfield>
      <subfield code="a">Stewart, Balfour</subfield>
    </datafield>
    <datafield tag="245" ind1="1" ind2="0">
      <subfield code="a">Nociones de física</subfield>
      <subfield code="h">[Texto impreso]</subfield>
      <subfield code="c">Balfour Stewart</subfield>
    </datafield>
    <datafield tag="260" ind1=" " ind2=" ">
      <subfield code="a">Madrid</subfield>
      <subfield code="b">Córdoba y Compañía</subfield>
      <subfield code="c">1883</subfield>
    </datafield>
    <datafield tag="300" ind1=" " ind2=" ">
      <subfield code="a">VII, 150 p.</subfield>
      <subfield code="b">il.</subfield>
      <subfield code="c">16 cm.</subfield>
    </datafield>
    <datafield tag="490" ind1="0" ind2=" ">
      <subfield code="a">Cartillas científicas</subfield>
    </datafield>
    <datafield tag="650" ind1=" " ind2="4">
      <subfield code="0">CSAA20190045162</subfield>
      <subfield code="a">Física</subfield>
    </datafield>
  </record>
  <record>
    <leader>00000nxm a2200000un 4500</leader>
    <controlfield tag="001">CSAF20210007248</controlfield>
    <controlfield tag="003">CSAF</controlfield>
    <controlfield tag="004">CSAB20210007033</controlfield>
    <controlfield tag="005">20210810083110.0</controlfield>
    <controlfield tag="008">2108100u    7   1001ua   0</controlfield>
    <datafield tag="040" ind1=" " ind2=" ">
      <subfield code="a">CS-AHM</subfield>
      <subfield code="b">spa</subfield>
    </datafield>
    <datafield tag="852" ind1=" " ind2=" ">
      <subfield code="a">CS-AHM</subfield>
      <subfield code="j">BFA_00318</subfield>
    </datafield>
  </record>
</collection>