<?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>01306nam a22003491  4500</leader><controlfield tag="001">000164527</controlfield><controlfield tag="003">MiAaHDL</controlfield><controlfield tag="005">20250726000000.0</controlfield><controlfield tag="006">m        d        </controlfield><controlfield tag="007">cr bn ---auaua</controlfield><controlfield tag="008">880715s1957    nyu           000 0 eng  </controlfield><datafield tag="010" ind1=" " ind2=" "><subfield code="a">   57005794 </subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(MiU)990001645270106381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">sdr-miu.990001645270106381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="z">(MiU)MIU01000000000000000164527-goog</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)523312</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(CaOTULAS)160187121</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(RLIN)MIUG84-B53116</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="z">(MiU)Aleph000164527</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="d">MnU</subfield><subfield code="d">MiU</subfield><subfield code="d">UtOrBLW</subfield></datafield><datafield tag="050" ind1="0" ind2="4"><subfield code="a">QA11</subfield><subfield code="b">.P6 1957</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">510.7</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Pólya, George,</subfield><subfield code="d">1887-1985.</subfield><subfield code="0">http://id.loc.gov/authorities/names/n80049669</subfield><subfield code="1">http://id.loc.gov/rwo/agents/n80049669</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">How to solve it;</subfield><subfield code="b">a new aspect of mathematical method.</subfield></datafield><datafield tag="250" ind1=" " ind2=" "><subfield code="a">2d. ed.</subfield></datafield><datafield tag="260" ind1=" " ind2=" "><subfield code="a">Garden City, N.Y. :</subfield><subfield code="b">Doubleday,</subfield><subfield code="c">1957.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">253 p. ;</subfield><subfield code="c">18 cm.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">unmediated</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">volume</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Doubleday anchor books,</subfield><subfield code="v">A93</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">Mathematics</subfield><subfield code="v">Problems, exercises, etc.</subfield><subfield code="0">http://id.loc.gov/authorities/subjects/sh85082154</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Mathematics</subfield><subfield code="x">Study and teaching.</subfield><subfield code="0">http://id.loc.gov/authorities/subjects/sh85082157</subfield></datafield><datafield tag="740" ind1="0" ind2=" "><subfield code="a">Mathematical method.</subfield></datafield><datafield tag="899" ind1=" " ind2=" "><subfield code="a">39015011933994</subfield></datafield><datafield tag="CID" ind1=" " ind2=" "><subfield code="a">000164527</subfield></datafield><datafield tag="DAT" ind1="0" ind2=" "><subfield code="a">20241217200340.0</subfield><subfield code="b">20250726000000.0</subfield></datafield><datafield tag="DAT" ind1="1" ind2=" "><subfield code="a">20260320140657.0</subfield><subfield code="b">2026-03-21T06:58:15Z</subfield></datafield><datafield tag="DAT" ind1="2" ind2=" "><subfield code="a">2025-12-18T18:50:02Z</subfield></datafield><datafield tag="CAT" ind1=" " ind2=" "><subfield code="a">SDR-MIU</subfield><subfield code="c">miu</subfield><subfield code="d">ALMA</subfield><subfield code="l">prepare.pl-004-009</subfield></datafield><datafield tag="FMT" ind1=" " ind2=" "><subfield code="a">BK</subfield></datafield><datafield tag="HOL" ind1=" " ind2=" "><subfield code="0">sdr-miu.990001645270106381</subfield><subfield code="a">MiU</subfield><subfield code="b">SDR</subfield><subfield code="c">MIU</subfield><subfield code="f">000164527</subfield><subfield code="p">mdp.39015011933994</subfield><subfield code="s">MIU</subfield><subfield code="1">990001645270106381</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260321</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015011933994</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260316</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015051356056</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260316</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015054502805</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260302</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015047642676</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260302</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015064405627</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield><datafield tag="974" ind1=" " ind2=" "><subfield code="b">MIU</subfield><subfield code="c">MIU</subfield><subfield code="d">20260316</subfield><subfield code="s">google</subfield><subfield code="u">mdp.39015064405775</subfield><subfield code="y">1957</subfield><subfield code="r">ic</subfield><subfield code="q">ren</subfield></datafield></record></collection>