<?xml version="1.0" encoding="UTF-8"?>
<mods xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.loc.gov/mods/v3" version="3.1" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
  <titleInfo>
    <title>Estudio de las zonas carboníferas de México</title>
  </titleInfo>
  <name type="personal">
    <namePart>Torón Villegas, Luis.</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Esteve Torres, Adrian</namePart>
    <role>
      <roleTerm type="text">joint author.</roleTerm>
    </role>
  </name>
  <typeOfResource>text</typeOfResource>
  <genre authority="marc">bibliography</genre>
  <originInfo>
    <place>
      <placeTerm type="code" authority="marccountry">mx</placeTerm>
    </place>
    <place>
      <placeTerm type="text">México]</placeTerm>
    </place>
    <dateIssued>1946-</dateIssued>
    <dateIssued encoding="marc" point="start">1946</dateIssued>
    <dateIssued encoding="marc" point="end">9999</dateIssued>
    <issuance>monographic</issuance>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">spa</languageTerm>
  </language>
  <physicalDescription>
    <form authority="marcform">print</form>
    <extent>   v. plates, fold. maps (part col.) fold. diagrs. 28 cm.</extent>
  </physicalDescription>
  <tableOfContents>I. La cuenca carbonífera del Yaqui (estado de Sonora).--II. La  cuenca carbonífera de Tlacolulan, Ver.</tableOfContents>
  <note>At head of title: Luis Torón Villegas. Adrián Esteve Torres.</note>
  <note>"Bibliografía": v. 1, p. 166-[200]</note>
  <subject authority="lcsh">
    <topic>Geology</topic>
    <geographic>Mexico</geographic>
  </subject>
  <subject authority="lcsh">
    <topic>Coal</topic>
    <geographic>Mexico</geographic>
  </subject>
  <subject authority="lcsh">
    <topic>Geology, Stratigraphic</topic>
  </subject>
  <subject authority="lcsh">
    <topic>Geology, Structural</topic>
  </subject>
  <classification authority="lcc">QE201 .T6</classification>
  <classification authority="ddc">551.75</classification>
  <relatedItem type="series">
    <titleInfo>
      <title>Investigaciones industriales del Banco de México</title>
    </titleInfo>
  </relatedItem>
  <identifier type="lccn">gs 47000353</identifier>
  <recordInfo>
    <recordContentSource authority="marcorg">U.S. Geol. Survey. Libr.</recordContentSource>
    <recordCreationDate encoding="marc">771207</recordCreationDate>
    <recordChangeDate encoding="iso8601">20260227111353.0</recordChangeDate>
    <recordIdentifier source="DLC">gs 47000353 </recordIdentifier>
  </recordInfo>
</mods>
