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    <marc:controlfield tag="001">9.955334</marc:controlfield>
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      <marc:subfield code="e">rda</marc:subfield>
      <marc:subfield code="c">CaOODSP</marc:subfield>
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      <marc:subfield code="z">R71-49/3-106E</marc:subfield>
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      <marc:subfield code="a">Crosley, Robert W., </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">Environmental contaminants in bottom sediments : </marc:subfield>
      <marc:subfield code="b">Peace and Athabasca River basins, October 1994 and May 1995 / </marc:subfield>
      <marc:subfield code="c">prepared for the Northern River Basins Study under projects 2322-D1 and 2322-E1 by Robert W. Crosley.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Edmonton, Alberta : </marc:subfield>
      <marc:subfield code="b">Northern River Basins Study, </marc:subfield>
      <marc:subfield code="c">April 1996.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©1996</marc:subfield>
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      <marc:subfield code="a">1 online resource (vii, 46 pages, 51 unnumbered pages) : </marc:subfield>
      <marc:subfield code="b">charts, map.</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
      <marc:subfield code="2">rdacontent</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Northern River Basins Study project report, </marc:subfield>
      <marc:subfield code="y">1192-3571 ; </marc:subfield>
      <marc:subfield code="v">no. 106</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 45-46).</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"The Northern River Basins Study commissioned Environment Canada to undertake bottom sediment surveys of the Athabasca and Peace River basins in October 1994 and May 1995. The surveys were undertaken to provide a part of the answer to Question 4 of a series of questions which the NRBS was mandated to answer, dealing with the distribution of and temporal changes in contaminants in the Peace, Athabasca, and Slave River basins"--Report summary.</marc:subfield>
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      <marc:subfield code="a">Issued also in print format.</marc:subfield>
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      <marc:subfield code="a">River sediments</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca River Watershed.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">River sediments</marc:subfield>
      <marc:subfield code="z">Peace River Watershed (B.C. and Alta.)</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Sédiments fluviaux</marc:subfield>
      <marc:subfield code="z">Alberta</marc:subfield>
      <marc:subfield code="z">Athabasca, Bassin de l'.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Sédiments fluviaux</marc:subfield>
      <marc:subfield code="z">Paix, Bassin de la rivière de la (C.-B. et Alb.)</marc:subfield>
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    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">Northern River Basins Study (Canada)‏, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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    <marc:datafield tag="776" ind1="0" ind2="#">
      <marc:subfield code="t">Environmental contaminants in bottom sediments : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.613022</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Northern River Basins Study project report ;</marc:subfield>
      <marc:subfield code="v">no. 106.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.883506</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">5517 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-106-eng.pdf</marc:subfield>
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