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      <marc:subfield code="a">Cook, F. D.‏ </marc:subfield>
      <marc:subfield code="q">(Fred D.), </marc:subfield>
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      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Biodegradability of northern crude oils / </marc:subfield>
      <marc:subfield code="c">by Dr. F.D. Cook, Dr. D.W.S. Westlake, for the Environment-Social Program, Northern Pipelines.</marc:subfield>
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      <marc:subfield code="a">Biodegradability of northern crude oil</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Information Canada, </marc:subfield>
      <marc:subfield code="c">October 1973.</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Environmental-Social Committee, Northern Pipelines, Task Force on Northern Oil Development Report ; </marc:subfield>
      <marc:subfield code="v">no. 73-20</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:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"The research was carried out and the report was prepared under contract for the Arctic Land Use Research Program, Northern Natural Resources and Environment Branch, Department of Indian Affairs and Northern Development."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 95).</marc:subfield>
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      <marc:subfield code="a">"These investigations compare the biodegradability of northern Canadian and of Alaskan crude oils which might be transported through a Mackenzie Valley pipeline. Studies are being conducted in the field and in the laboratory to establish factors affecting the biodegradability of such oils"--Introduction, page 3. </marc:subfield>
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      <marc:subfield code="a">Petroleum</marc:subfield>
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      <marc:subfield code="z">Northwest Territories.</marc:subfield>
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      <marc:subfield code="z">Alberta.</marc:subfield>
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      <marc:subfield code="a">Petroleum</marc:subfield>
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      <marc:subfield code="z">Saskatchewan.</marc:subfield>
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      <marc:subfield code="a">Pétrole</marc:subfield>
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      <marc:subfield code="z">Territoires du Nord-Ouest.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Pétrole</marc:subfield>
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      <marc:subfield code="z">Alberta.</marc:subfield>
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      <marc:subfield code="a">Pétrole</marc:subfield>
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      <marc:subfield code="z">Saskatchewan.</marc:subfield>
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      <marc:subfield code="a">Task Force on Northern Oil Development (Canada). </marc:subfield>
      <marc:subfield code="b">Environmental-Social Committee.</marc:subfield>
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      <marc:subfield code="a">Environmental-Social Program, Northern Pipelines (Canada)</marc:subfield>
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      <marc:subfield code="a">Arctic Land Use Research Program (Canada)‏.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">Report (Task Force on Northern Oil Development (Canada). Environmental-Social Committee)</marc:subfield>
      <marc:subfield code="v">no. 73-20.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.883314</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/rcaanc-cirnac/R73-4-73-20-eng.pdf</marc:subfield>
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