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    <marc:controlfield tag="008">250423e196806##bccabd  ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="b">eng</marc:subfield>
      <marc:subfield code="e">rda</marc:subfield>
      <marc:subfield code="c">CaOODSP</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">DR52-13/2-1968E-PDF</marc:subfield>
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      <marc:subfield code="a">Ganton, J. H., </marc:subfield>
      <marc:subfield code="e">author. </marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">High stability in reverberation under sea ice (U) / </marc:subfield>
      <marc:subfield code="c">by J. H. Ganton,  A. R. Milne and T. Hughes.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Victoria, B.C.] : </marc:subfield>
      <marc:subfield code="b">Defence Research Establishment Pacific : </marc:subfield>
      <marc:subfield code="b">Defence Research Board, </marc:subfield>
      <marc:subfield code="c">June 1968.</marc:subfield>
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      <marc:subfield code="b">illustrations, map, chart</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Report ; </marc:subfield>
      <marc:subfield code="v">68-2</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Defence Research and Development Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 4).</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Underwater acoustic telemetry</marc:subfield>
      <marc:subfield code="z">Arctic Archipelago (Nunavut and N.W.T.)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Télémétrie acoustique sous-marine</marc:subfield>
      <marc:subfield code="z">Arctique, Archipel (Nunavut et T.N.-O.)</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Defence Research Establishment Pacific, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Defence Research Board, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="a">Report (Defence Research Establishment Pacific)</marc:subfield>
      <marc:subfield code="v">68-2.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.936121</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">1.60 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-13-2-1968-eng.pdf</marc:subfield>
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