<?xml version="1.0" encoding="UTF-8"?><collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.loc.gov/MARC21/slim" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd"><record><leader>01020nam a22003251u 4500</leader><controlfield tag="001">006724552</controlfield><controlfield tag="003">MiAaHDL</controlfield><controlfield tag="005">20090408000000.0</controlfield><controlfield tag="006">m        d        </controlfield><controlfield tag="007">cr bn ---auaua</controlfield><controlfield tag="008">971208s1969    mx ab    b    00000 spa  </controlfield><datafield tag="010" ind1=" " ind2=" "><subfield code="a">   75510921//r85</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">sdr-nrlfGLAD151423187-B</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">AGF-7841</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DLC</subfield><subfield code="c">DLC</subfield><subfield code="d">CU-I</subfield></datafield><datafield tag="043" ind1=" " ind2=" "><subfield code="a">n-mx---</subfield></datafield><datafield tag="090" ind1=" " ind2=" "><subfield code="a"> QE993</subfield><subfield code="b">.G62</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)203563</subfield></datafield><datafield tag="100" ind1="2" ind2="0"><subfield code="a">González Quintero, Lauro.</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Morfología polínica: la flora del Valle del Mezquital, Hidalgo</subfield></datafield><datafield tag="260" ind1="0" ind2=" "><subfield code="a">México,</subfield><subfield code="b">Departamento de Prehistoria, Instituto Nacional de Antropología e Historia,</subfield><subfield code="c">1969</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">185 p.</subfield><subfield code="b">illus., fold. map.</subfield><subfield code="c">23 cm</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Paleoecología ;</subfield><subfield code="v">3</subfield></datafield><datafield tag="504" ind1=" " ind2=" "><subfield code="a">Bibliography: p. 59-60</subfield></datafield><datafield tag="538" ind1=" " ind2=" "><subfield code="a">Mode of access: Internet.</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Palynology</subfield><subfield code="z">Mexico</subfield><subfield code="z">Mezquital River Valley</subfield></datafield><datafield tag="CID" ind1=" " ind2=" "><subfield code="a">006724552</subfield></datafield><datafield tag="DAT" ind1="0" ind2=" "><subfield code="a">20070305113518.0</subfield><subfield code="b">20090408000000.0</subfield></datafield><datafield tag="DAT" ind1="1" ind2=" "><subfield code="a">20120815205219.0</subfield><subfield code="b">2026-06-04T18:00:37Z</subfield></datafield><datafield tag="DAT" ind1="2" ind2=" "><subfield code="a">2026-06-04T17:30:03Z</subfield></datafield><datafield tag="CAT" ind1=" " ind2=" "><subfield code="a">SDR-NRLF</subfield><subfield code="d">LOCAL - GLADIS</subfield><subfield code="l">loader.pl-001-001</subfield></datafield><datafield tag="FMT" ind1=" " ind2=" "><subfield code="a">BK</subfield></datafield><datafield tag="HOL" ind1=" " ind2=" "><subfield code="0">sdr-nrlfGLAD151423187-B</subfield><subfield code="a">uc1</subfield><subfield code="b">SDR</subfield><subfield code="c">NRLF</subfield><subfield code="p">uc1.b3813338</subfield><subfield code="s">UC</subfield><subfield code="1">GLAD151423187-B</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">UC</subfield><subfield code="c">NRLF</subfield><subfield code="d">20260604</subfield><subfield code="s">google</subfield><subfield code="u">uc1.b3813338</subfield><subfield code="y">1969</subfield><subfield code="r">ic</subfield><subfield code="q">bib</subfield><subfield code="t">non-US bib date1 &gt;= 1931</subfield></datafield></record></collection>