<?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>01998cam a2200421Ka 4500</leader><controlfield tag="001">011571863</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">110926s1953    tnua     b   f000 0 eng d</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(MiU)990115718630106381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">sdr-miu.990115718630106381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="z">(MiU)MIU01000000000000011571863-goog</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)754616928</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="z">(MiU)Aleph011571863</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">FUG</subfield><subfield code="c">FUG</subfield><subfield code="d">AECDA</subfield><subfield code="d">UtOrBLW</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">AECD</subfield></datafield><datafield tag="086" ind1="0" ind2=" "><subfield code="a">Y 3.At 7:8/AECD-3352</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Rockwell, Theodore.</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Construction of cheap shields :</subfield><subfield code="b">a survey /</subfield><subfield code="c">by Theodore Rockwell, III.</subfield></datafield><datafield tag="260" ind1=" " ind2=" "><subfield code="a">Oak Ridge, Tenn. :</subfield><subfield code="b">U.S. Atomic Energy Commission, Technical Information Service,</subfield><subfield code="c">1952.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">30 p. :</subfield><subfield code="b">ill. ;</subfield><subfield code="c">27 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">computer</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">online resource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">AECD ;</subfield><subfield code="v">3352</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Work performed at the Oak Ridge National Laboratory.</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"Date Declassified: April 25, 1953"--P. 2.</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"January 16, 1950."</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"AECD-3352."</subfield></datafield><datafield tag="504" ind1=" " ind2=" "><subfield code="a">Includes bibliographical references.</subfield></datafield><datafield tag="538" ind1=" " ind2=" "><subfield code="a">Mode of access: Internet.</subfield></datafield><datafield tag="588" ind1=" " ind2=" "><subfield code="a">This bibliographic record is available under the Creative Commons CC0 public domain dedication. 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